Practice30Create account

A cooler marked ₹8000 is sold at a discount, and 12% GST on the discounted price brings the final bill to ₹7168. What was the discount percent?

Class 8Comparing QuantitiesComparing Quantities
  • A20%
  • B10.4%
  • C25%
  • D12%

Step-by-Step Solution

Strip the tax first: SP = . Discount = 8000 − 6400 = 1600, so discount % = %. Trap: treating the tax-inclusive ₹7168 as the selling price gives 10.4%, and dividing the discount by the ₹6400 selling price instead of the marked price gives 25%.
Answer: A) 20%

Key idea: Discount

A discount is a reduction off the **marked price** (MP), not the cost price. The selling price (SP) is what the customer actually pays.

**SP = MP − Discount**
**Discount % = (Discount / MP) × 100**

Example: shirt MP ₹800, discount 25%. Discount amount = 25% of 800 = 200. SP = 800 − 200 = 600.

Note: discount % is calculated on MP. Profit/loss % (Class 7) is on CP. Don't mix them up.

Master this chapter in 30 minutes a day.

Don't just memorise the answer — build a daily practice habit.

Practice 5 Similar Questions Free →

All Comparing Quantities practice questions

More Class 8 Comparing Quantities practice

A shopkeeper lent ₹7500 for 4 years and received ₹1800 as simple interest. Find the rate…How long will ₹9000 take to earn ₹2160 as simple interest at 8% per annum?Find the simple interest on ₹15000 at 8% per annum for 9 months.Two friends in Jodhpur each deposit ₹24000 for 2 years at 5% per annum. The bank used by…A bank offers 8% per annum on a ₹25000 deposit for 1 year. Under its simple-interest…