If x+y =9 and x-y =5, the value of 4xy is :

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Job Solution Agrani bank Ltd Agrani bank Ltd - Senior Officer - 12.02.2010 গণিত
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If two non-zero positive integers p and q are such that p=4q and p<8, then q= ?

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A certain river has a current of 3 miles per hour. A boat takes twice as long to travel upstream between two points as it does to travel downstream between the same two points. What is the speed of the boat in still water ?

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