Question

If a truck is pumping water at a rate of 200 L/min, how lang will it take to put of the fire if the fire in the room with a floor area of 140 m^2

Answer 1

It will take approximately 0.7 minutes (or 42 seconds) to pump enough water to cover the entire floor area of the room and put out the fire.

The time it will take to put out the fire depends on the total amount of water needed to cover the entire floor area of the room. The rate of water pumping is given as 200 L/min.

To find the time (t), we can use the formula:

Amount of water = Rate × Time

In this case, the amount of water is the floor area of the room (140 m²) and the rate is 200 L/min.

i.e.,

140 m² =(200L/min)×t

t=
`(140)/(200) = 0.7` minutes