Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
PATH (ADVANCED)CODE: 01 PACE APTITUDE & TALENT HUNT (QUESTION PAPER & SOLUTION) 1. Ans. It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is: (A) 2:3 (B) 3:2 (C) 3:4 (D) 4:3 (C) Let the speed of the train be x km/hr and that of the car be y km/hr. 120 480 1 4 1 8 ..... i x y x y 15 200 400 25 1 2 1 ..... ii And, x y 3 x y 24 Then, Solving (i) and (ii), we get: x = 60 and y = 80. 2. Ans. 3. Ans. 4. Ans. 5. Ans. Sachin Tendulkar, The God of the cricket, scored 6000 runs in a certain number of innings. In the next five innings he was out of form and hence could make only a total of 90 runs, as a result of which his average fell by 2 runs. How many innings did he play in all? (A) 105 (B) 95 (C) 115 (D) 104 (A) 6000 90 6000 2 x 100 x 5 x So total innings = 105 If aliens from planet of apes are in the habit of replacing every 2 by 3 and then finding the value of anything, what according to them is the value of 32 ? (A) 9 (B) 5 (C) 27 (D) 37 (D) 32 33 27 37 What is 20 % of 50 % of 75 % of 70 ? (A) 5.25 (B) 6.75 (A) 1 1 3 . . . 70 5.25 5 2 4 (C) 7.25 (D) 5.5 Ben Johnson and Carl Lewis run at speeds of 10 m/s and 11 m/s respectively on a circular track. They start simultaneously from the same point on the 420 m long track and run in opposite directions. After they start, how many times would they have met each other when Ben Johnson has run a distance of 1 km? (A) 6 (B) 5 (C) 4 (D) 7 (B) VB VC 21 1000 m time 100 s 10 m s 420 m 1 Round 205 21m s So in 100 s = 5 – Round CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 1 PATH (ADVANCED)CODE: 01 6. Ans. 7. Ans. 8. The smallest of 3 4, 4 5, 4 6, 3 8 is (A) 3 8 (B) 4 5 (B) Rice power by 12 44, 53, 63,84 so smallest is 4 5 If sin A :cos A 4 : 7 , then the value of (A) 3 14 (D) 4 7 3 1 7 6 4 7 2 7 (B) 3 2 9. Ans. 10. Ans. 3 4 7 sin A 3cos A is 7 sin A 2 cos A (C) 1 3 (D) 4 6 (D) 1 6 The difference between an exterior angle of n 1 sided regular polygon and an exterior angle of n 2 sided regular polygon is Ans. (C) 6 , then the value of ' n ' is (A) 13 (B) 14 (C) 12 (A) 2 2 0 n 1 n 2 6 n 13 (D) 15 The incomes of A, B, C are in the ratio of 12 : 9 : 7 and their spendings are in the ratio is 15 : 9 : 8. If A saves 25% of his income. What is the ratio of the savings of A, B and C? (A) 15 : 18 : 11 (B) 11 : 18 : 15 (C) 11 : 15 : 18 (D) None (A) Let A B C Income 12 x 9x 7x Spending 15 y 9y 8y 3 Given 15y 9x y x 5 27 29 So req. 12x 9x : 9x x : 7x x 5 5 15 :18 :11 A box measures 30 cm × 24 cm × 18 cm. The longest rod that can be placed in it has the length (Take 2 1.414 ) (A) 16 cm (B) 30 cm (C) 42.42 cm (D) 42.52 cm (C) 2 b 2 h 2 42.42 cm 11. Ans. If the equation 9x2 + 6kx + 4 = 0 has equal roots, then the roots are both equal to 2 3 (A) (B) (C) 0 (D) 3 3 2 (A) D 0 36k 2 4.9.4 k 2 CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 2 PATH (ADVANCED)CODE: 01 12. Ans. 13. Ans. 14. 1 1 1 1 Find the value of 1 1 1 1 ...... . 2 4 16 256 1 (A) 1 (B) 2 (C) 3 (B) 1 4 In a coded language TAKE = 1790, PLOT = 5321 then code for PLATE will be (A) 52701 (B) 53071 (C) 35710 (D) 53710 (D) Mark A, B, C.... with 1, 2, 3, …, 26 respectively and select the coding Find the missing number 36 49 26 9 81 64 21 25 Ans. (D) 25 25 64 16 (A) 24 (D) (B) 25 ? 144 36 (C) 23 (D) 31 25 64 ? 144 = 5 + 8 + 6 + 12 = 31 36 15. The mirror image of the point A a, b (where a 0, b 0 ) in the x-axis is Ans. (A) a, b (B) (B) a, b (C) a, b (D) None of these A (a, b) x I (a, – b) 16. Ans. If xy 0 , then the point x, y may lie in (A) quadrants I and III (B) quadrants II and IV (C) quadrants I and II (D) quadrants III and IV (A) xy > 0 both are positive or negative i.e. Ist or IIIrd quadrant. CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 3 PATH (ADVANCED)CODE: 01 17. A ring of radius 'R' is kept on top of another ring of radius '10R' & touching it at point A as shown R A 10R Ans. 18. If Smaller ring starts from A and only rolls on top of bigger ring. How many revolutions does it have to make to reach back at point A (A) 10 (B) 20 (C) 11 (D) None (C) Centre of smaller ring has to travel 2 (11R ) distance. In one rotation it travels 2 R If tan 86º = m then 2 (A) m 2 1 m 1 Ans. cot 4º cot86º is m tan 4º m2 1 (B) 1 m2 (C) 1 m2 1 m2 2 (D) m 2 1 . m 1 (A) tan 860 m cot 40 1 cot 4 cot 86 m2 1 m So 1 m2 1 m tan 40 m m 0 19. Ans. 20. Ans. 21. Ans. 0 m The sum of the speeds of a boat in still water and the speed of the current is 10 kmph. If the boat takes 40% of the time to travel (same distance) downstream when compared to that upstream, then find the difference of the speeds of the boat when travelling upstream and down stream. (A) 3 kmph (B) 6 kmph (C) 4 kmph (D) 5 kmph (B) x + y = 10 …(2) d 2 d … (1) 3x 7y xy 5 xy (1) & (2) x = 7, y = 3 So, x y x y 6 An athlete decides to run the same distance in 1/4th less time that she usually took. By howmuch percent will she have to increase her average speed? (A) 45 % (B) 33.33 % (C) 23.33 % (D) 43 % (B) t v vt v x . t x 3 4 33.33% Find the units digit of the expression 111.121.133.144.155.166 . (A) 4 (B) 3 (C) 7 (D) It contain 2 5 xxx...0 So ans. 0 (D) 0 CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 4 PATH (ADVANCED)CODE: 01 22. Ans. The area of a rectangle gets reduced by 80 square units, if its length is reduced by 5 units and breadth is increased by 2 units. If we increase the length by 10 units and decrease the breadth by 5 units, the area is increased by 50 sq. units. Find the length and breadth of the rectangle (A) 30, 40 (B) 35, 35 (C) 40, 30 (D) 45, 25 (C) xy = (x – 5) (y + 2) + 80 = (x + 10) (y – 5) – 50 2x – 5y + 70 = 0 & –5x + 10y – 100 = 0 x = 40, y = 30 23. Ans. 24. Find the greatest number that will divide 445, 572 and 699 leaving remainders 4, 5 and 6 respectively. (A) 60 (B) 65 (C) 78 (D) 63 (D) 445 R4 63 572 R 5 63 699 R6 63 A wheel makes 20 revolutions per hour. The radians it turns through 25 minutes is c (A) 50 7 Ans. Ans. 3 c (C) 1 50 7 c (D) 50 3 (D) 60 min 20 round 25 min 25. c (B) 250 20 50 25 .25 round = 2 60 3 3 An examination consists of 100 questions. Two marks are awarded for every correct option. One mark is deducted for every wrong option and half mark is deducted for every question left, then a person scores 135. Instead, if half mark is deducted for every wrong option and one mark is deducted for every question left, then the person scores 133. Find the number of questions left unattempted by the person. (A) 14 (B) 16 (C) 10 (D) 12 (A) Let x correct y wrong (100 – x –y) un attempted 1 2x y 100 x y 135 2 2x y 2 100 x y 1 133 x + y = 86 So (100 – x – y) = 14 CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 5 PATH (ADVANCED)CODE: 01 26. Ans. 27. Ans. A man bought 50 dozen fruits consisting of apples and bananas. A banana is cheaper than an apple. The number of dozens of apples he bought is equal to the cost per dozen of bananas in rupees and vice versa. If he has spent a total amount of Rs 1050, find the number of dozens of apples and bananas he bought respectively. (A) 12 and 38 (B) 14 and 36 (C) 15 and 35 (D) 28 and 32 (C) Let x number of dozen are apple with rate y Rs / dozen & y number of dozen are banana with rate x Rs / dozen Then, xy yx 1050 xy 525 15.35 So, (15, 35) After Yuvraj hit 6 sixes in an over, Geoffery Boycott commented that Yuvraj just made 210 runs in the over. Harsha Bhogle was shocked and he asked Geoffery which base system was he using? What must have been Geoffery’s answer? (A) 9 (B) 2 (C) 5 (D) 4 (D) 2x2 + 1. X + 0.x0 = 36 2x 2 x 36 0 9x 8x 2x (x – 4) + 9 (x – y) = 0 9 x 4, x 4 2 28. Ans. 29. Ans. 30. Ans. Mr. Srivastava has five children – Dolly, Polly, Molly, Solly and Lolly – named in the decreasing order of their ages. The age difference between any two consecutive children is the same (an integral number of years). If dolly is 14 years old, what are the possible ages of Molly? I. 13 years II. 12 years III 11 Years (A) only II (C) only I and II (A) Dolly Molly = Polly must be an integer 2 So Molly can be 12 yrs (B) only II and III (D) All three of these 1 1 If a 3 , then a 3 3 equals a a 10 3 (A) (B) 3 3 (C) 18 3 (C) 1 a 3 a Cubing (i) both sides, we get 1 1 1 a3 3 3 a 27 a 3 3 27 9 18 a a a Abscissa of all points on the y-axis is (A) 0 (B) 1 (A) Abscissa of all points on y axis is 0. (C) 1 (D) 7 7 (D) None of these CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 6 PATH (ADVANCED)CODE: 01 31. Ans. 32. Ans. 33. Ans. If the height of a cone is doubled, with same radius of base then its volume is increased by (A) 100% (B) 200% (C) 300% (D) 400% (A) 1 Volume of cone r 2 h 3 1 2 2 New volume r 2h r 2 h [ height of cone 2h ] 3 3 2 1 2 3 3 r h % increase in volume 100 1 2 r h 3 100 % In the given figure, ABCD is square of side 14 cm and APD and BPC are semicircles. The area of the shaded region is (Take 22 7 ) : (A) 42 cm2 (B) 40 cm2 (C) 43 cm2 (A) Area of the shaded region Area of square ABCD Area of two equal semicircles 1 22 14 14 cm 2 2 7 2 cm 2 2 7 2 2 196 cm 154 cm 42cm2 (D) 44 cm2 If the circumference of two circles are in the ratio 2 : 3, then the ratio of their area is : (A) 4 : 9 (B) 2 : 3 (C) 3 : 2 (D) 9 : 4 (A) C1 : C2 2 : 3 2r1 : 2r2 2 : 3 r1 : r2 2 : 3 2 2 Now, r : r 4 : 9 3 2 1 34. Ans. 2 2 The area of the circle is 220 cm2. The area of a square inscribed in it is (Take 22 7 ) (A) 49 cm2 (B) 70 cm2 (C) 140 cm2 (D) 150 cm2 (C) Area of the circle 220 cm 2 CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 7 PATH (ADVANCED)CODE: 01 r 2 220 r 2 70 r 70 cm Diagonal of the square inscribed 2 70 cm 2 70 140 cm 2 Area of the square 140 140 140 cm 2 Side of the square 35. Ans. 36. If means , – means ; means + and means –, then the value of 36 12 4 6 2 3 when simplified is 1 (A) 2 (B) 18 (C) 42 (D) 6 2 (C) Using proper signs, we get: 36 12 4 6 2 3 36 3 3 3 36 3 9 42 . So the answer is (C) One-inch squares are cut from the corners of this 5 inch square. What is the area in square inches of the largest square that can be fitted into the remaining space? (A) 9 Ans. (B) 12 1 2 (C) 15 (D) 15 1 2 (C) We draw a square as shown We wish to find the area of the square. The area of the larger square is composed of the smaller square and the four triangles. The triangles have base 3and height1 , so the combined area of the four 3 6 The area of the smaller square is 9. We add these to see that the area of the large 2 square is 9 6 15 triangles is 4. CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 8 PATH (ADVANCED)CODE: 01 37. Ans. 38. Ans. In ABC, D is a point on side AC such that BD = DC and BCD measures 70o. what is the degree measure of ADB ? (A) 100 (B) 120 (C) 135 (D) 140 (D) BD = DC, so angle DBC = angle DCB = 70. Then CDB = 40. Since angle ADB and BDC are supplementary, ADB 180 40 140 The circumference of the circle with center O is divided into 12 equal arcs, marked the letters A through L as seen below. What is the number of degrees in the sum of the angles x and y? (A) 75 (B) 80 (C) 90 (D) 120 (C) For this problem, it is useful to know that the measure of an inscribed angle is half the measure of its corresponding central angle. Since each unit arc is 1 of the circle's circumference, each unit central 12 o 360 o o o angle measures 30 . Then, we know that the inscribed arc of x = 60 so mx 30 ; 12 and the inscribed arc of y 120o so my 60o . mx my 30 60 90 39. Ans. What is the ratio of the least common multiple of 180 and 594 to the greatest common factor of 180 and 594? (A) 110 (B) 165 (C) 330 (D) 625 (C) To find either the LCM or the GCF of two numbers, always prime factorize first. The prime factorization of 180 32 5 22 . The prime factorization of 594 33 11 2 . Then, to find the LCM, we have to find the greatest power of all the numbers there are; if one number is one but not the other, use it (this is 33, 5, 11, 22). Multiply all of these to get 5940. For the GCF of 180 and 594, use the least power of all of the numbers that are in both factorizations and multiply. 32 × 2 = 18 Thus the answer = 5940 330 18 Similar Solution CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 9 PATH (ADVANCED)CODE: 01 We start off with a similar approach as the original solution. From the prime factorizations, the GCF is 18 . It is a well known fact that gcd m,n 1cm m, n mn . So we have, Dividing by 18 yields 1cm (180, 594) = 594 10 5940 Therefore, 40. Ans. 1cm 180,594 5940 330 . gcf 180,594 18 Quadrilateral ABCD is a trapezoid, AD = 15, AB = 50, BC = 20, and the altitude is 12. What is the area of the trapezoid? (A) 600 (D) (B) 650 (C) 700 (D) 750 If you draw altitudes from A and B to CD the trapezoid will be divided into two right triangles and a rectangle. You can find the values of a and b with the Pythagorean theorem. a 152 122 81 9 b 202 122 256 16 ABYX is a rectangle so XY AB 50 CD a XY b 9 50 16 75 The area of the trapezoid is 12. 41. Ans. 50 75 6 125 750 2 Three circle of radii 3 cm, 4cm and 5 cm are drawn such that each touches the other two externally. Then area of the triangle formed by their centers is: (A) 12 5 cm 2 (B) 6 5 cm 2 (C) 15 cm 2 (D) None (A) A 5 3 C 4 B For ABC AB = 7, AC = 8, BC = 0 Apply Heron’s formula CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 10 PATH (ADVANCED)CODE: 01 789 12 2 area 12 12 7 12 8 12 9 12 5 cm 2 s 42. Ans. 43. Ans. 44. Ans. 45. Ans. The total age of A and B is 12 years more than the total age of B & C. Then the age difference between A & C is (A) greater than 10 years (B) less than 8 years (C) greater than 14 years (D) less than 11 years (A) (a + b) – (a – b) = 12 a – c = 12 Two numbers a and b are respectively 12.5% and 25% more than a third number c. The percentage by which b is more than a is (A) 12.5% (B) 50% (C) 11% (D) none of these (D) a = (1.125) C b = (1.25) C ba 100 Required percentage = 100 % a 9 The average of 20 results is 30 and that of 30 more results is 20. For all the results taken together, the average is (A) 25 (B) 50 (C) 12 (D) 24 (D) 20 30 30 20 Required average = 30 20 = 24 The length, breadth and height of a room in the shape of a cuboid are increased by 10%, 20% and 50% respectively. Find the percentage change in the volume of a cuboid (A) 77% (B) 75% (C) 88% (D) 98% (D) v bh v1 1.1 1.2b 1.5 h 1.98 bh = 1.98 V % change = 98% 46. Ans. Let a, b be real numbers such that a 2 b 2 4a 2b 5 0 . Then (A) a 2 b 2 3a b (B) a 2 b 2 a 2b (C) a 2 b2 4 (D) None of these (A) a2 + b2 – 4a + 2b + 5 = 0 2 2 a 2 b 1 0 a = 2, b = –1 a2 + b2 = 5 = 3a + b CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 11 PATH (ADVANCED)CODE: 01 47. In the figure given, what is the measure of ACD ? A D 25o 75 o B Ans. 48. C (A) 75o (B) 80o (B) ABD 1800 750 250 800 ACD ABD (C) 90o (D) 105o In the figure given below ABCD is a rectangle, ABE is an isosceles triangle and BC 2 2 AE and the area of triangle ABE is 7 cm2, then the area of ABCD is A D B C E 2 Ans. (A) 35 cm (B) 42 cm2 (C) Let AB = x AE x 2 BC 4x Area of ABE 7 (C) 56cm2 (D) 50cm2 x2 7 x 2 14 2 Area of ABCD = 4x2 = 56 49. Ans. The perimeter of a right angled triangle is 36 cm and the sum of the squares of its sides is 450 cm2. The area of the triangle is (A) 42 cm2 (B) 54 cm2 (C) 62 cm2 (D) 100 cm2 (B) a + b + c = 36 … (1) 2 2 2 c =a +b … (2) a2 + b2 + c2 = 450 2c2 450 c = 15 a + b = 21 2 a b a 2 b2 ab 2 441 225 108 2 ab Area 54 2 CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 12 PATH (ADVANCED)CODE: 01 50. Ans. In a recent survey 40% houses contained two or more people. Of those houses containing only one person, 25% were having only a male. The percentage of all houses, which contain exactly one female and no males is (A) 15% (B) 40% (C) 55% (D) 45% (D) Let total no. of houses be x. No. of houses having one person = 0.6 x No. of housed having only one female & no male = (0.75) (0.6 x) = 0.45 x required percentage = 45% CENTERS : MUMBAI /DELHI /AKOLA /LUCKNOW /NASHIK /PUNE /NAGPUR /BOKARO /DUBAI # 13