??????

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??????

by Fab » Tue Nov 25, 2008 4:04 pm
Q25:
If the number 52,1n9, where n represents the tens digit, is a multiple of 3, then the value of n could be which of the following?

A. 6
B. 5
C. 3
D. 1
E. 0
Source: — Problem Solving |

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by cramya » Tue Nov 25, 2008 4:15 pm
n will be 1 since sum of the digits is should be divisible by 3 since 521n9 is multiple of 3

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by Fab » Tue Nov 25, 2008 4:23 pm
Thanks Man , I misread the question..

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by niraj_a » Tue Nov 25, 2008 4:42 pm
agree with cramya, number's sum has to be a multiple of 3 to be divisible by 3.

1 is a possible choice so D.