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September 30, 2014

Homework Help: maths-Arithmetic progression

Posted by Anonymous on Wednesday, December 26, 2012 at 7:22am.

A ladder has rungs 25 cm apart.The rungs decrease uniformly in length from 45 cm at the bottom to 25 cm at the top.If the top and the botom rungs are two nd a half metre apart, what is the length of the wood required for the rungs

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