Question

What will be the difference between the sale price (in INR) of a book with a marked price

INR 1,500 under the following discount schemes?

(i) Two successive discounts of 20% each

(ii) Two successive discounts of 30% and 10%

• A. 12
• B. 15
• C. 18
• D. 20

Answer 1

Answer:

B. 15

Marked price (= ₹1500)

Two successive discounts of 20% each

After first 20% discount:

$1500 \times \frac{80}{100} = 1200$

After second 20% discount:

$1200 \times \frac{80}{100} = 960$
Sale price (= ₹960)

Successive discounts of 30% and 10%

After 30% discount:

$1500 \times \frac{70}{100} = 1050$

After 10% discount:

$1050 \times \frac{90}{100} = 945$
Sale price (= ₹945)

Difference between the sale prices

960 - 945 = 15

So, the difference is:

=₹15