The value of the cube root of \(-89\) is:

BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

This topic has expert replies

Post new topic Post Reply

Previous Topic Next Topic

Gmat_mission: Legendary Member; Posts: 1622; Joined: Thu Mar 01, 2018 7:22 am; Followed by:2 members

The value of the cube root of \(-89\) is:

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

Timer

00:00

Your Answer

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

Quote

Source: Beat The GMAT — Problem Solving | Wed Jun 24, 2020 7:59 am

GMAT/MBA Expert

Scott@TargetTestPrep: GMAT Instructor; Posts: 8086; Joined: Sat Apr 25, 2015 10:56 am; Location: Los Angeles, CA; Thanked: 43 times; Followed by:29 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.

Answer: A

Scott Woodbury-Stewart
Founder and CEO
[email protected]