One dozen apple and 5 pounds of mango are currently the same price. If the…
2025
One dozen apple and 5 pounds of mango are currently the same price. If the price of one pound mango rises by 5% and the price of one dozen apple goes up by 10%. How much will it cost to buy a dozen of apple and 5 pound of mango ?
- A.
12.5%
- B.
5%
- C.
7.5%
- D.
13%
Attempted by 31 students.
Show answer & explanation
Correct answer: C
Key idea: take a common convenient price for one dozen apples and for 5 pounds of mango and compute the combined percentage change.
Let the original price of one dozen apples (which equals the price of 5 pounds of mango) be Rs 100.
New price of one dozen apples = 100 × 1.10 = Rs 110.
New price of 5 pounds of mango = 100 × 1.05 = Rs 105.
Original combined cost = 100 + 100 = Rs 200. New combined cost = 110 + 105 = Rs 215.
Increase = Rs 215 − Rs 200 = Rs 15. Percentage increase = (15/200) × 100 = 7.5%.
Answer: 7.5%