A pond is being filled by two water lines. The first water line can fill the pond in 2
hours. When the two water lines are used
at the same time, it takes 1., hours to do
the job. How long does it take to fill the
pond using only the second water line?
Give the answer in hours.

2hr

Step-by-step explanation:

Let x be the flow rate of the first line in kg/hr

Let y be the flow rate of the second line kg/hr

Let V be the volume of the pond. in kg

(2 hr)(x kg/hr) = V kg

(1 hr)(x + y kg/hr) = V kg

x + y = 2x

y = x

as the flow rates of the two lines is identical, the second line alone takes two hours to fill the pond.

l.jnl.j/n.m,lm,

step-by-step explanation:

5050 i think

step-by-step explanation: