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31 Jan 2023, 06:41
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B
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Difficulty:
25%
(medium)
Question Stats:
77% (01:12) correct
23%
(01:35)
wrong
based on 92
sessions
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Not Attempted Yet
If 23,ab2 is 5-digit positive integers, what is the remainder when 23,ab2 is divided by 25?
(1) a = 9
(2) b = 5
(1) a = 9
(2) b = 5
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
05 Mar 2023, 08:02
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A number is divisible by 25 if the last or the final two digits of the number are divisible by 25.
Statement 1: 23,ab2 if a=9, Number will be 239b2. Now if b=0, remainder will be 2, if b=1, remainder will be 12. So no unique solution.
Statement 2: 23,ab2 if b=5, Number will be 23a52, remainder is 2. we don't need value of a to find the remainder.
Hence B.
Statement 1: 23,ab2 if a=9, Number will be 239b2. Now if b=0, remainder will be 2, if b=1, remainder will be 12. So no unique solution.
Statement 2: 23,ab2 if b=5, Number will be 23a52, remainder is 2. we don't need value of a to find the remainder.
Hence B.
09 Oct 2024, 10:14
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