The printed price of a book is Rs.150. If it is sold after two successive discounts of 30% and 40%, then find its selling price.
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e Rs.63
| Understanding | Application |
| We will use the concept of successive discounts to find the total discount applied to the book. |
The total discount = (-a) + (-b) + ab / 100 Where a & b are discounts. ⇒ Discount = -30 - 40 + (30 × 40) / 100 ⇒ -70 + 12 ⇒ -58 (the negative sign implies discount) Selling price = 150 × (42 / 100) ⇒ Rs. 63 |