If the mean of the numbers 2x,3x,4x and 3x is 12,then the sum of the numbers is? a)4 b)12 c)48 d)80

Question

asked Mar 10, 2022 13.2k views

1 Answer

Seth Malaki · Answer 1 · 2022-03-17T02:58:15+0000

Answer:

C. 48.

Explanation:

If the mean is 12, then 12 must be 2x, 3x, 4x, and 3x divided by 4.

-->
(2x+3x+4x+3x)/(4)=12

-->
(12x)/(4)=12

-->
$\\3x=12$

--> x=4

Add: 2x+3x+4x+3x=8+12+16+12=48