Two successive discounts of 10% and 15% are equivalent to a single discount of:

Correct option is A

Given:

We are given two successive discounts of 10% and 15%. 

Formula Used: 
Final Discount =  $$a + b - \frac{a\times b}{100}$$​
Solution

Final Discount = 10% + 15% - $$\frac{ 10\times 15}{100}$$ %

Final Discount = 25% - 1.5% 

Final Discount = 23.5%