Question

The cost price of 18 articles is equal to the selling price of 15 articles. The gain is ____
1. 25%
2. 15%
3. 20%
4. 18%

Answer 1

Correct Answer - Option 3 : 20%

Given:

Cost price of 18 articles = Selling price of 15 articles

Formula used:

Gain% = (Gain/C.P) × 100

Calculation:

Let the cost of 1 article be Rs. 1

Cost of 15 articles = Rs. 15

Now, selling price of 15 articles = Rs. 18

Gain = Rs. (18 – 15)

⇒ Rs. 3

Gain% = (3/15) × 100%

⇒ 20%

∴ The gain percentage is 20%