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January 31, 2015

January 31, 2015

Posted by **Jamie** on Friday, September 10, 2010 at 12:54pm.

- Math -
**bobpursley**, Friday, September 10, 2010 at 4:08pmLet the time it takes B to fill the tank be Xhrs

so time it takes A is X+5

timeforbothtofill= 1/(1/X + 1/(X+5))

timefor both to fill=X(X+5)/(X+5+X)

so 6=x(x+5)/(2x+5)

solve for x, the time B takes to fill

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