Download Solving Percent Problems - Using Parallel

Find a Percent of a Number
1.
Forty students went on a field trip. If 75% of them
were girls, how many of the students were girls?
2.
There are 28 students in Mrs. Vela’s class. If 50% of
the students belong to an after-school club, how
many students in Mrs. Vela’s class belong to an
after-school club?
3.
There are 85 fans at a middle school soccer game.
Of these fans, 60% are parents of players. How
many of the fans are parents of players?
4.
Taste tests show that Theo’s Pizza was the favorite
of 84% people tested. If 500 people were surveyed,
how many voted for Theo’s Pizza?
5.
There are 45 questions on a test. Mariah answered
80% of them correctly. How many questions did
Mariah answer correctly?
6.
Sam took a survey of 80 people. Fifty-five percent of
the people surveyed said they have at least 2
televisions in their home. How many people have 2
televisions?
Find a Percent
1.
Out of 25 students in a class, 15 students take dance
lessons. What percent of the students in the class
take dance lessons?
2.
A television that normally costs $480 was on sale for
$336. What percent was the price reduced?
3.
At Knox Middle School, 120 students play soccer. Of
those students 48 are girls. What percent of girls
play soccer at Knox Middle School?
* 4.
Of 25 students who play violins, 8 have soft-sided
instrument cases. What percent of the violinists have
soft-sided cases?
* 5.
Among 40 finalists in a music competition, 6 play
trumpets, 4 play violins, and 1 plays tuba. The rest
are singers. What percent of the finalists are
singers?
Find a Number When a Percent
is Known
1.
Of Jerry’s teachers, 45% are female. If Jerry has 9
female teachers, how many teachers does he have
altogether?
2.
On a math quiz, Sandra got 12 of the problems
correct. Her score was 80%. How many questions
were on Sandra’s math quiz?
3.
Mark has answered 8 questions on a survey, which
is 25% of the questions. How many questions are on
the survey?
4.
In June, the sale of fish totaled 18% of Petsmart’s
sales, which came to $7,560. What were the total
sales in June?
5.
On Friday, 12 of the Sun City fire trucks were used,
which is 75% of the trucks. How many fire trucks
does Sun City have?
Percent Relationships
1.
Sixty students went on a field trip. If 40% of them
were boys, how many of the students on the trip
were boys?
2.
Out of 90 people, 40 said that they had never been
to the Fresno zoo. What percent of the people had
not been to the Fresno zoo?
3.
There were 72 students in the cafeteria. 18 of the
students were eating pizza for lunch. What percent
of the students were eating pizza?
4.
Forty-five teachers, which was 75% of the school’s
teachers, voted to give more homework. How many
teachers did the school have?
Sales Tax & Discounts
1.
The cost of the items in Mindy’s shopping cart is
$67.39. If the sales tax applied to her purchase is
5%, what is the total cost of the items in her cart?
2.
A table cost $268.00. The sales tax is 6.5%. What
would be the cost of the table, including sales tax?
3.
A lawn mower is on sale for 25% off its regular price.
If the discount totals $50.00, what is the regular price
of the mower?
4.
A pair of jeans costs $25. If the jeans are placed on
sale for 20% off, what will the sale price be for one
pair of jeans?
5.
A radio costs $39.00. At a discount rate of 40%,
what is the cost of the radio?
6.
Dee received a 10% discount on her annual health
club membership. The membership was originally
$495.00. What was the discounted price Dee paid?
7.
Julie bought a video game that was on sale for 20%
off the regular price. If Julie bought the game for
$36, what was its regular price?
8.
The original price of a pair of sneakers was $85.
During a sale, the price was reduced 15%. What
was the sale price?
9.
A backpack is on sale for 25% off the regular price.
If the sale price is $52.50, what is the regular price of
the backpack?
10. Barbara bought a sweater that was on sale for 20%
off the regular price. If the sale price is $35, what
was the regular price?
Simple Interest
1.
Jim’s deposit of $500 in a bank earns a simple
interest rate of 6.5% per year. If he does not add to
his deposit or take away from it, what will be the
value of his deposit after 1 year?
2.
Last January, Carlos deposited $280 in a bank. If
the deposited amount is earning 7.5% simple interest
per year, how much interest in dollars will Carlos
earn in 1 year?
3.
Tamara is saving to buy a car. If she deposits
$4,200 in the bank and earns 6% simple interest
annually on her deposit, what will be the value of the
deposit after 3 years?
4.
Daniel put $600 in a savings account for 2 years at
an interest rate of 7%. How much interest will he
earn?
5.
Bill has $1,200 in a savings account. The savings
account earns 5% simple interest a year. If Bill
leaves the money in the account for 2 years, how
much interest will he earn?
6.
Teresa earns 8% interest a year on her savings
account. If she saves $350 all year with no
withdrawals, how much interest will Teresa earn?
Tips
1.
Kristen owes $49.65 for her family’s dinner. If she
adds a 20% tip to the amount she owes, how much
will the tip be?
2.
Melanie was given a bill for $19.62 at her favorite
Mexican restaurant. She wants to give a 20% tip.
What will be the cost of the meal, including the tip?
3.
Michael’s tip is 20% of the customer’s $50 bill. What
is Michael’s tip?
4.
Stella’s tip was 20% of the bill. If the bill was $50,
how much tip did Stella receive?