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26 Mar 2018, 00:25
Kudos
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E
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Difficulty:
85%
(hard)
Question Stats:
43% (02:17) correct
57%
(02:05)
wrong
based on 68
sessions
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Not Attempted Yet
In a cost-accounting class of a financial course, there are N students present on a particular day. If N is a two digit number, then what is the value of N?
(1) If 5 more students had been present in the class, they could have been evenly divided in groups of 7 each.
(2) If 6 more students had been present in the class, they could have been evenly divided in groups of 9 each.
(1) If 5 more students had been present in the class, they could have been evenly divided in groups of 7 each.
(2) If 6 more students had been present in the class, they could have been evenly divided in groups of 9 each.
26 Mar 2018, 04:12
Kudos
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Statement 1 is clearly insufficient.
It says N + 5 should be divisible by 7.
16+5=21
23+5=28
30+5=35
37+5=42. and so on
Statement 2 is also similarly insufficient.
21+6=27
30+6=36
39+6=45
48+6=54
Combining both , we get N = 30
Thus, option C is right.
Sent from my Lenovo K53a48 using GMAT Club Forum mobile app
It says N + 5 should be divisible by 7.
16+5=21
23+5=28
30+5=35
37+5=42. and so on
Statement 2 is also similarly insufficient.
21+6=27
30+6=36
39+6=45
48+6=54
Combining both , we get N = 30
Thus, option C is right.
Sent from my Lenovo K53a48 using GMAT Club Forum mobile app
26 Mar 2018, 04:23
Kudos
Bookmarks
SonalSinha803
30+5=35
30+6=36
156+5 : 161 : 161/7 = 23
156+6 : 162 : 162/9 = 18
Similarly there infinite solution when statement 1 & 2 are considered together, hence, not sufficient.
Kudoss!!
