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05 Jul 2022, 12:00
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Difficulty:
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Question Stats:
87% (01:20) correct
13%
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wrong
based on 146
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A number N is a positive three-digit number. If x is in its hundred’s place and y is in its unit’s place, then the number N – 100x – y is always divisible by:
(A) 8
(B) 9
(C) 10
(D) 11
(E) 13
(A) 8
(B) 9
(C) 10
(D) 11
(E) 13
05 Jul 2022, 12:33
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Let three digit number be N=xay
Then N=100x+10a+y
Now N-100x-y=(100x+10a+y)-100x-y= 10a
This means it will always be divisible by 10 irrespective of the value of 'a'
Hence, C
Posted from my mobile device
Then N=100x+10a+y
Now N-100x-y=(100x+10a+y)-100x-y= 10a
This means it will always be divisible by 10 irrespective of the value of 'a'
Hence, C
Posted from my mobile device
05 Jul 2022, 22:34
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Hundreds, tens and units digits for the GMAT
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