• 7 CATs FREE!
If you earn 100 Forum Points

Engage in the Beat The GMAT forums to earn
100 points for \$49 worth of Veritas practice GMATs FREE

VERITAS PRACTICE GMAT EXAMS
Earn 10 Points Per Post
Earn 10 Points Per Thanks
Earn 10 Points Per Upvote

The value of the cube root of $$-89$$ is:

This topic has expert replies
Legendary Member
Posts: 719
Joined: 01 Mar 2018
Followed by:1 members

The value of the cube root of $$-89$$ is:

by Gmat_mission » Wed Jun 24, 2020 7:59 am

00:00

A

B

C

D

E

Global Stats

The value of the cube root of $$-89$$ is:

A. Between -9 and 10
B. Between -8 and -9
C. Between -4 and 5
D. Between -3 and 4
E. Undefined

[spoiler]OA=A [/spoiler]

Source: Official Guide

GMAT/MBA Expert

GMAT Instructor
Posts: 5407
Joined: 25 Apr 2015
Location: Los Angeles, CA
Thanked: 43 times
Followed by:23 members

Re: The value of the cube root of $$-89$$ is:

by Scott@TargetTestPrep » Mon Jun 29, 2020 5:57 am
Gmat_mission wrote:
Wed Jun 24, 2020 7:59 am
The value of the cube root of $$-89$$ is:

A. Between -9 and 10
B. Between -8 and -9
C. Between -4 and 5
D. Between -3 and 4
E. Undefined

[spoiler]OA=A [/spoiler]

Source: Official Guide
Solution:

Since the cube root of -64 is -4 and that of -125 is -5 and -89 is between -64 and -125, then its cube root is between -4 and -5. The only answer choice which includes a value between -4 and -5 is A.