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divisibility rule

Expert replies
by Mom4MBA » Wed Feb 24, 2010 2:34 pm
The number aaaaaa, where 'a' is a single digit natural number not equal to 0, is divisible by
a. 11
b. 13
c. 143
d. all of these

Answer: d

How do u know whether a number is divisible by 13 ?
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Source: — Problem Solving |

by DeepthiRajan » Wed Feb 24, 2010 3:23 pm
Six digit numbers where all the digits are same will be divisible by 13.
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by Mom4MBA » Wed Feb 24, 2010 8:45 pm
thanks Deepthi...... :)
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