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27 Aug 2022, 06:45
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E
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Difficulty:
15%
(low)
Question Stats:
92% (01:22) correct
8%
(02:14)
wrong
based on 36
sessions
History
Date
Time
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Not Attempted Yet
If s is a decimal of the form D.D0D0, what is s?
(1) D + D is not single digit.
(2) 2s > 10
(1) D + D is not single digit.
(2) 2s > 10
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
27 Aug 2022, 09:05
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given statement 1
d+d=2 digit now
d can be 5,6,7,8,9
i.e 5+5=10 6+6=12 so on
however different values of d not sufficient
now statement 2
2s>10
s>5
insufficient
combining 1 and 2 we get that d is not 5
since s>5.5050
but still d can be 6,7,8,9
so not sufficient
therefore option E
d+d=2 digit now
d can be 5,6,7,8,9
i.e 5+5=10 6+6=12 so on
however different values of d not sufficient
now statement 2
2s>10
s>5
insufficient
combining 1 and 2 we get that d is not 5
since s>5.5050
but still d can be 6,7,8,9
so not sufficient
therefore option E
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