An article is listed at Rs.1,200. A customer pays Rs.972 for it after getting two successive discounts. If the rate of the first discount is 10%, then the rate of the second discount is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 10%.
Let another discount be x%
Now,
⇒ 1200 × 90/100 × (100 - x)/100 = 972
⇒ 100 - x = (972 × 100 × 100)/(1200 × 90)
⇒ x = 100 - 90
⇒ x = 10
Hence, the second discount is 10%