March 22, 2017

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Posts by saila

Total # Posts: 2

1. a first train travelling at x km an hour takes t hour less to travel y km than a slower one takes to travel z km . find the different between their speed 2. a man has one kind of coffee at 'a' paise per kg and another at 'b' paise per kg how much of each ...
May 19, 2012

what is "sqrt" please can i know?????
May 19, 2012

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