Ramesh buys an article for 15% less than its original value, and sells it for 10% more than its original value. Find the percentage of gain (approximately).

Correct option is D

Given:

Cost Price = 15% less than original value. Selling Price = 10% more than the original price.

Formula Used:

Profit percentage = $$\frac{(S.P - C.P)}{ C.P}× 100 \%$$​

Where,

S.P = Selling price And C.P = Cost price

Solution:

Let the original value be 100 ₹. So the Cost Price of article for Ramesh = 15% less than 100: 

​$$=> CP = 100 - \frac{15 }{ 100} × 100 \%$$​​

=> CP = 85 ₹ 

Selling Price of article = 10% more than the original value:

​$$=> SP = 100 + (\frac{10 }{ 100}) × 100$$​​

=> SP = 110 ₹ Now,

Profit percentage

​$$= [\frac{(S.P - C.P) }{C.P}] × 100 \\\ \\=>\frac{ (110 - 85) }{ 85} × 100$$​​

=> 29.41%