It will take 4500 minutes to fill the swimming pool at a rate of 50 liters per minute
How to find how long it will take to fill the pool
To fill the pool we need to find the total volume of the swimming pool
We have to divide the swimming pool into sections and add up
Section 1: trapezoidal side
volume = area of trapezoid * depth
= 0.5 (sum of parallel lines) * height * depth
= 0.5 (2 + 1) * (15 - 4) * 10
= 165 m³
section 2: rectangular side
Volume = length * width * depth
= 1 * 6 * 10
= 60 m³
Total volume
= 60 + 165
= 225 m³
convert to liters
225 * 1000 = 225,000 liters
At a rate of 50 liters per minute, time taken is
time = 225000 / 50 = 4500 minutes