Level 3
If Kelly sells a hand phone at a discount of 20% of the usual price, she will make a profit of $40. If she sells it at a discount of 40%, she will incur a loss of $45. Find the price of the hand phone.
Level 3
If Jerome sells a camera at a discount of 5% of the usual price, he will make a profit of $75. If he sells it at a discount of 20%, he will still make a profit of $30. Find the cost price of the camera.
Level 3
If Melvin sells a television at a markup price of 10% above its usual selling price, he will make a profit of $500. If he sells it at a discount of 20% of its usual selling price, he will incur a loss of $100. Find the selling price of the television.
Level 3
One book costs $48 at a shop. During a sale, for every 3 books bought, the 4th book can be bought at a discount of 15% off the original price. How many books does Ron buy if he pays $1944 altogether?
