Comparing Quantities Class 8 Revision

Rs 1600 lent at a compound interest of 5% per annum,

compounded half yearly for one year will amount to:

• (a) Rs 1640

• (b) Rs 1680

• (c) Rs 1681

• (d) Rs 1764

If the cost price of 10 shirts is equal to the selling price of

8 shirts, then which of the following is true for the

transaction?

• (a) Profit of 25%

• (b) Loss of 25%

• (c) Profit of 20%

• (d) Loss of 20%

Amna purchased a toy for Rs 660 including sales tax. If

the rate of sales tax is 10%, then the selling price of the

toy is _________.

A number is increased by 20% and then it is decreased

by 20%. Find the net increase or decrease per cent.

Vishakha offers a discount of 20% on all the items at her

shop and still makes a profit of 12%. What is the cost

price of an article marked at Rs 280?

Find the compound interest on Rs 48,000 for one year

at 8% per annum when compounded half yearly.

Suppose a certain sum doubles in 2 years at r % rate of simple

interest per annum or at R% rate of interest per annum compounded

annually. We have

• (a) r < R

• (b) R < r

• (c) R = r

• (d) can’t be decided

If 90% of x is 315 km, then the value of x is

• (a) 325 km

• (b) 350 km

• (c) 350 m

• (d) 325 m

Radhika bought a car for Rs 2,50,000. Next year its price decreased

by 10% and further next year it decreased by 12%. In the two years

overall decrease per cent in the price of the car is

• (a) 3.2%

• (b) 22%

• (c) 20.8%

• (d) 8%

A TV set was bought for Rs 26,250 including 5% VAT. The original

price of the TV set is

• (a) Rs 27,562.50

• (b) Rs 25,000

• (c) Rs 24,937.50

• (d) Rs 26,245