After getting three equal successive discount percentages over a marked price of Rs.1000 a customer has to pay 729 for an article. What is the rate of each of the successive discounts?

A. 10%

B. 20%

C. 30%

D. 40%

Solution(By Examveda Team)

Let X is the factor by which successive dicount was given.

Now,
1000 *X *X *X = 729

X *X *X  = 729/1000
X = 0.9
It means 10% dicount was given. (Factor 0.9 shows after first dicount SP was 900.).