Discuss Forum
1. By selling 100 bananas a fruit seller gains the selling price of 20 bananas. His gain percent is--
- A. 20%
- B. 20%
- C. 20%
- D. 20%
Answer: Option B
Explanation:
Let the selling price of each mango = x Rs.
Then selling price of 100 mangoes = 100x Rs.
Gain = selling price of 20 mangoes = 20x Rs.
Cost price of 100 mangoes = selling price - gain
⇒ 100x - 20x = 80x
Gain percentage = (gain×100)/cost price
⇒ (20x × 100)/80x
Gain percentage = 25 %
Then selling price of 100 mangoes = 100x Rs.
Gain = selling price of 20 mangoes = 20x Rs.
Cost price of 100 mangoes = selling price - gain
⇒ 100x - 20x = 80x
Gain percentage = (gain×100)/cost price
⇒ (20x × 100)/80x
Gain percentage = 25 %
Post your comments here: