Multiple choice

The cost price of 20 articles is equal to selling price of 16 articles. The gain percent is- यदि 20 वस्तुओं का क्रय मूल्य 16 वस्तुओं के विक्रय मूल्य के बराबर है, तो लाभ प्रतिशत है-

  1. 10%

  2. 30%

  3. 20%

  4. 25%

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

Let CP of 1 article = x, then SP of 1 article = y. CP of 20 = 20x, SP of 16 = 16y. Given: 20x = 16y, so y/x = 20/16 = 5/4. Gain = SP - CP = y - x = (5/4)x - x = x/4. Gain percent = (gain/CP)×100 = ((x/4)/x)×100 = 25%. The gain is calculated on the cost price.