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

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.