Multiple choice

A shopkeeper allows a discount of 10% on the advertised price of a camera. What should be the marked price on the camera, which cost him Rs 600, to make a profit of 20% would be?

  1. $650$
  2. $800$
  3. $700$
  4. $850$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Work backwards from the desired selling price. To earn 20% profit on Rs 600 cost, the shopkeeper needs Rs 720. Since a 10% discount is offered on marked price, the marked price must be such that 90% of it equals Rs 720. Solving: MP x 0.9 = 720, so MP = Rs 800.