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# Is a = 0? (1) ab = 0 (2) a^2 = 0

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Joined: 01 Sep 2010
Posts: 3302
Is a = 0? (1) ab = 0 (2) a^2 = 0  [#permalink]

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01 Nov 2018, 04:01
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00:00

Difficulty:

25% (medium)

Question Stats:

90% (00:15) correct 10% (00:20) wrong based on 10 sessions

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Is a = 0?

(1) ab = 0
(2) $$a^2 = 0$$

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Joined: 09 Jun 2018
Posts: 155
Location: United States
GPA: 3.95
WE: Manufacturing and Production (Energy and Utilities)
Re: Is a = 0? (1) ab = 0 (2) a^2 = 0  [#permalink]

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01 Nov 2018, 04:43
Stmt 1: a can be 0 or b can be 0, Hence Insuff. Eliminate A,D
Stmt 2: a has to be 0, Suff

Hence Option B
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Re: Is a = 0? (1) ab = 0 (2) a^2 = 0 &nbs [#permalink] 01 Nov 2018, 04:43
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