Download social arithmetic 2023 (1)

Profit and Loss
Glosarry
• Cost, buying price = harga pembelian, biaya
• Selling price
= harga penjualan
• Profit, gain
= laba/untung
• Loss
= rugi
• Marked price
= harga sebelum didiskon
• Discount
= potongan harga
• Sale price
= harga setelah diskon
• Interest
= bunga
• Interest rate
= suku bunga
• Goods and services tax
= pajak barang dan jasa
Profit and loss
Selling price > Cost price
Profit/ gain
Cost price > Selling price
loss
Calculation of profit and gain
A fruit seller buys 650 oranges for Rp78,000.
he sells 400 oranges at Rp200 each and 200 oranges at Rp150 each.
If the rest are not sale because they are rotten, calculate the profit
or loss!
Adi bought a second hand bicycle for Rp 72000.
After he repaired, he sold the bicycle.
a) If the repairing cost is Rp24,000.
how much did Adi sell it to get Rp15,000 profit
b) If Adi sold it for Rp85,000 and He got Rp7,500 loss.
How much did the repairing cost?
Bruto Net and Tare
Bruto, Netto and Tare
Exercise
Discount, Services and Tax
Discount, Services and Tax
Marked
Price
Discount
Discount
Price
Discount
Price
Services
+ Tax
Final
Price
Example
Marked price = $𝟔. 𝟗𝟎
Discount = 𝟏𝟓% × $𝟔. 𝟗𝟎 = $𝟏. 𝟎𝟑𝟓
Price after discount = $𝟔. 𝟗𝟎 − $𝟏. 𝟎𝟑𝟓 = $𝟓. 𝟖𝟔
Services and tax = $𝟓. 𝟖𝟔 × 𝟏𝟎% + 𝟕% = $𝟓. 𝟖𝟔 × 𝟏𝟕% = $𝟎. 𝟗𝟗
Total payment = $𝟓. 𝟖𝟔 + $𝟎. 𝟗𝟗 = $𝟔. 𝟖𝟓 (rounded)
David is paying for a meal with lots of friends. They received great
service, so he is giving a 20% tip. The meal came to $182.30. How
much will he leave as a tip?
Tip
$𝟏𝟖𝟐. 𝟑𝟎 × 𝟐𝟎% = $𝟑𝟔. 𝟒𝟔
The sales tax on nonprescription drugs in South Dakota is 4%.
Calculate how much tax you need to pay if some
nonprescription drugs cost $26.80 before tax.
Tax :
$𝟐𝟔. 𝟖𝟎 × 𝟒% = $𝟏. 𝟎𝟕𝟐
Sharon has finished her meal at a restaurant, but received bad
service. She will only be leaving a 10% tip. Help her calculate the tip
if the meal, before sales tax, came to $36.60.
Tip :
$𝟑𝟔. 𝟔𝟎 × 𝟏𝟎% = $𝟑. 𝟔𝟔
Price after discount
$𝟗. 𝟓𝟎 × 𝟕𝟓% = $𝟕. 𝟏𝟐𝟓
Total payment
$𝟕. 𝟏𝟐𝟓 × 𝟏𝟏𝟕% = $8.34