Answer to Question #223560 in Algebra for Jennifer Wagas

Question

The price of a schoolbag is 54 yuan, which is 6 times that of a pen. The price of a pen is 3 times that of an eraser. How much is an eraser?

Answer 1

Let $x=$ the price of an eraser. Then the price of a pen will be $3x,$ and the price of a schoolbag will be $6(3x)=18x.$

$$18x=54$$

$$x=3$$

The price of an eraser is 3 yuan.