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
Marion had some red and pink marbles. If she gives away 16 red marbles, the number of red marbles will be 10% of the total number of marbles left. If she gives away 48 pink marbles, the number of red marbles will be 25% of the total number of marbles left.
Level 3
Fanny and Gillian collected some stamps. If Fanny gave Gillian 52 stamps, both would have an equal number of stamps. If Gillian gave Fanny 40 stamps, Fanny would have 5 times as many stamps as Gillian. Find the number of stamps each of them had.