New pump = (14 * 6) / (14 -6)
New pump = (84) / (8)
New Pump = 10.5 hours
Two pumps can drain a certain pool in 6 hours.
So, the combined one hour work of the pumps = ,
Also,older pump takes 14 hours to drain the pool by itself,
The one hour work of older pump = ,
Thus, the one hour work of newer pump = Combined one hour work - one hour work of older pump,
Hence, the total time taken by newer pump =
for the points
hours. if it takes the older...