Correct Answer - Option 4 : 25%
Given:
The cost price of 100 mangoes is equal to the selling price of 80 mangoes
Calculation
Let selling price = cost price
According to question,
100 × CP = 80 × SP
CP ÷ SP = 80/100
CP ÷ SP = 4/5
Profit percentage = (5 – 4) ÷ 4 × 100
Profit percentage = 1 ÷ 4 × 100
Profit percentage = 25%
Hence, profit percentage = 25%