akirayuki
contestada

Easy question:
Pump A can fill a tank of water in 6 hours. Pump B can fill the same tank in 10 hours. How long would it take the two pumps, working together, to fill the tank?

Respuesta :

tonb

Answer:

3 hours and 45 minutes

Step-by-step explanation:

let's assume the tank has a volume of x liters.

let's assume the speed of filling it is x/6 liters per hour for A and x/10 liters per hour for B.

the formula to calculate the time is:

time = volume / speed

If the pumps work together, the total speed is x/6 + x/10, which is 16/60 x

So the time this takes is:

time = x / (16/60 x) = 60/16 hours = 3.75 hours = 3 hours and 45 minutes.

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