Question

Last month a store sold 4 times as many tapes as CDs. If the total quantity of these two items sold was 360, how many tapes did the store sell? a. 288 b. 360 c. 90 d. 20

Answer 1

Answer: The store sold 288 tapes last month.

Explanation:

Let the number of CDs be x , then the number of tapes is given by the expression : 4x

Also, the total quantity of these two items sold was 360.

Now, we have the following equation :-

`x+4x=360\\\\\Rightarrow\ 5x=360\\\\\Rightarrow\ x=(360)/(5)\\\\\Rightarrow\ x=72`

The number of CDs sold in last month = 72

The number of tapes sold in last month =
`4*72=288`

Hence, the store sold 288 tapes last month.