Question

The CP of 21 articles is equal to the SP of 18 articles. The gain percent is:​

Answer 1

Answer:

Step-by-step explanation:

Let the CP of 1 article be ₹1, then the CP of 21 articles will be ₹21.

And according to the question, the cost of 21 articles is equal to SP of 18 articles.

Therefore SP of 18 articles will be ₹21.

So, SP of 1 article would be ₹21/18.

Gain % = (SP of 1 article - CP of

1 article)×100/(CP of 1 article)

= (₹(21/18) - ₹1)×100/₹1

= 300/18

=16.667%