Question

What is the value of the unknown number in the verbal description?

5 times the sum of 12 and a number is 80
A. 4
B. 1
C. 16
D. 28

Answer 1

12 + 4 = 16

16 x 5 = 80

answer: A. 4

Answer 2

The correct option is A.

Explanation:

Let the unknown number be x.

It is given that 5 times the sum of 12 and a number is 80.

`5(12+x)=80`

Using distributive property we get

`5(12)+5x=80`

`60+5x=80`

Subtract 60 from both the sides.

`5x=80-60`

`5x=20`

Divide both sides by 5.

`x=4`

The value of x is 4. Therefore the correct option is A.