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04 Aug 2021, 05:00
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A
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Difficulty:
15%
(low)
Question Stats:
83% (01:12) correct
17%
(01:20)
wrong
based on 90
sessions
History
Date
Time
Result
Not Attempted Yet
If a and b are non-negative integers, is √a + √b = 1 ?
(1) √a + √b = 2√a + 2√b
(2) √a < 3
(1) √a + √b = 2√a + 2√b
(2) √a < 3
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
04 Aug 2021, 05:08
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From (1) we get root(a) + root(b) = 0
So, (1) is sufficient
(2) should be insufficient, because no information about b is provided.
So, A.
So, (1) is sufficient
(2) should be insufficient, because no information about b is provided.
So, A.
ash124
04 Aug 2021, 06:50
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Statement1:
√a + √b = 2√a + 2√b
2√a-√a + 2√b - √b = 0
√a + √b = 0
sufficient
Statement2:
(2) √a < 3
It means a < 9
not sufficient
Option A
√a + √b = 2√a + 2√b
2√a-√a + 2√b - √b = 0
√a + √b = 0
sufficient
Statement2:
(2) √a < 3
It means a < 9
not sufficient
Option A
