If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4,

This topic has expert replies
Moderator
Posts: 2058
Joined: Sun Oct 29, 2017 4:24 am
Thanked: 1 times
Followed by:5 members

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4, x, and x + 3, what is the value of x?

A. 14
B. 15
C. 16
D. 17
E. 18

The OA is the option _B_

Source: Official Guide

Legendary Member
Posts: 2214
Joined: Fri Mar 02, 2018 2:22 pm
Followed by:5 members

by deloitte247 » Sun Jun 30, 2019 1:53 pm
$$5+8+12+15=3+4+x+x+3$$
$$40=10+2x$$
$$40-10=2x$$
$$\frac{30}{2}=\frac{2x}{2}$$
$$x=15$$

$$answer\ is\ Option\ B$$

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 7222
Joined: Sat Apr 25, 2015 10:56 am
Location: Los Angeles, CA
Thanked: 43 times
Followed by:29 members

by Scott@TargetTestPrep » Mon Jul 01, 2019 4:47 pm
M7MBA wrote:If the sum of 5, 8, 12, and 15 is equal to the sum of 3, 4, x, and x + 3, what is the value of x?

A. 14
B. 15
C. 16
D. 17
E. 18

The OA is the option _B_

Source: Official Guide
We can create the equation:

5 + 8 + 12 + 15 = 3 + 4 + x + x + 3

40 = 10 + 2x

30 = 2x

15 = x

Answer: B

Scott Woodbury-Stewart
Founder and CEO
[email protected]

Image

See why Target Test Prep is rated 5 out of 5 stars on BEAT the GMAT. Read our reviews

ImageImage