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An increase of 20% in the price of apples. 2 apples less are available for Rs. 100. The average price of present price of an apple and old price of an apple is -
- ARs. 55/6
- BRs. 44
- CRs. 72
- DRs. 65
Answer not set
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Let the original price of an apple be Rs. A.
There is increase in price of an apple by 20%.
New price of an apple
= A + 20/100 × A
= 6A/5
Then,
There are 2 apple less available for Rs. 100.
⇒ (100/A) - (100/(6A/5)) = 2
⇒ 600 - 500 = 12A
⇒ 12A = 100
⇒ A = 100/12
Present price of an apple
= 100/12 × 6/5
= 10
Average price of old price and present price of an apple
= {(100/12)+10} / 2
= 55/6
∴ Average price of old price and present price of an apple be Rs. 55/6.
There is increase in price of an apple by 20%.
New price of an apple
= A + 20/100 × A
= 6A/5
Then,
There are 2 apple less available for Rs. 100.
⇒ (100/A) - (100/(6A/5)) = 2
⇒ 600 - 500 = 12A
⇒ 12A = 100
⇒ A = 100/12
Present price of an apple
= 100/12 × 6/5
= 10
Average price of old price and present price of an apple
= {(100/12)+10} / 2
= 55/6
∴ Average price of old price and present price of an apple be Rs. 55/6.