Multiple choice

By selling 50 metres of cloth, a person gains the cost price of 20 metres of cloth. What is his gain percent? 50 मीटर कपड़ा बेचकर, एक व्यक्ति 20 मीटर कपड़े की लागत मूल्य के बराबर लाभ प्राप्त करता है। उसका लाभ प्रतिशत क्या है?

  1. 40

  2. 25

  3. 20

  4. 10

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gain = cost price of 20 metres when selling 50 metres. So gain on each metre = 20/50 = 2/5 of CP. Gain percent = (2/5) × 100 = 40%. When profit is expressed as 'gain equals CP of x units when selling y units', the gain percent is (x/y) × 100.