Q:

Two computers working together can finish a search in 40 seconds. One of these computers can finish in 60 seconds. How long would it take the second computer to finish the same search?

Accepted Solution

A:
Let the time taken by 2nd computer be = xTime taken by first computer = 60 secondsTotal time taken by both = 40 secondsSo, equation becomes:[tex]\frac{1}{60}+\frac{1}{x}=\frac{1}{40}[/tex][tex]\frac{-1}{x}=\frac{1}{60}-\frac{1}{40}[/tex]Solving this we get, x=120 seconds Hence, the 2nd computer will take 120 seconds to finish a search alone.