• if it is not a multiple of 4, then it is between 60 and 69
• if it is a multiple of 3 it is between 50 and 59
• if it is not a multiple of 6 it is between 70 and 79.

As a verification:
*  76 as a multiple of 4, does not lie between 60 and 69.
* 76 which is not divisible by 6, lies between 70 and 79.
* 76 which is not divisible by 3, does not lie between 50 and 59.

Edited on October 30, 2007, 11:35 am

Posted by K Sengupta on 2007-04-03 05:56:39