CMAT 2021 Solved Question Paper

Question : 8 of 100

Marks: +1, -0

The price of an apple is twice that of an orange. The price of an orange is thrice that of a banana. If the price of an apple increases by

10 \%

, price of an orange increases by

30 \%

and the price of a banana increases by

20 \%

. Find the percentage increase in the price of 20 apples, 20 oranges and 20 bananas.

Solution:

Let the price of a banana

=₹ x

∴ Price of an orange

=₹ 3 x

and price of an apple

=₹ 6 x

Total cost of a banana, an orange and an apple

=x+3 x+6 x=10 x

According to the question,
Total cost after increament

=6.6 x+3.9 x+1.2 x=11.7 x

∴ Required per cent

={20 ×(11.7 x-10 x)}/{20 ×10 x} ×100=17 \%

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