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Integers reversed - Applied problem

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Integers reversed - Applied problem

by anirudhbhalotia » Thu Mar 10, 2011 9:23 am
If a two-digit integer has its digits received, the resulting integer differs from the original by 27. By how much do the two digits differ?

A. 3
B. 4
C. 5
D. 6
E. 7

OA - A
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by force5 » Thu Mar 10, 2011 9:53 am
consider the question like this

let the number be 10a+b
reversing the digits 10b+a
difference 9a-9b = 27 ( given)
a-b = 3

hence A

:wink:
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by anirudhbhalotia » Tue Mar 15, 2011 9:25 am
force5 wrote:consider the question like this

let the number be 10a+b
reversing the digits 10b+a
difference 9a-9b = 27 ( given)
a-b = 3

hence A

:wink:
Thats it...it was so easy?!! :o
"Change is never a matter of ability but always a matter of motivation" - Anthony Robbins
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