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# [(31-6)(16+9)]^1/2=?

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GMAT Club team member
Status: GMAT Club Team Member
Affiliations: GMAT Club
Joined: 02 Nov 2016
Posts: 5357
GPA: 3.62

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07 Jul 2019, 03:36
1
00:00

Difficulty:

15% (low)

Question Stats:

95% (00:35) correct 5% (01:23) wrong based on 21 sessions

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$$\sqrt{(31-6)(16+9)}=?$$

(A) 5
(B) 10
(C) 25
(D) 50
(E) 625

Source: Nova GMAT

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Joined: 29 Nov 2018
Posts: 164
GMAT 1: 750 Q49 V44

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07 Jul 2019, 14:27
1
$$\sqrt{(31-6)(16+9)}=?$$
=$$\sqrt{(25)(25)}=?$$
=$$\sqrt{(5)^2 (5)^2}=?$$
=5*5
= 25

IMO option C
Re: [(31-6)(16+9)]^1/2=?   [#permalink] 07 Jul 2019, 14:27
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