The length of the pool is 15 m, find its perimeter if the area is 120 cm2.

Let’s denote by x the width of this pool.
According to the condition of the problem, the length of the pool is 15 meters, and its area is 120. We solve the resulting equation: m². Since the pool has a rectangular shape, its area is equal to the product of the length and width of this pool, therefore, we can draw up the following equation:
x * 15 = 120.
We solve the resulting equation:
x = 120/15;
x = 8 m.
Knowing the length and width of this pool, we find its perimeter P:
P = 2 * (15 + 8) = 2 * 23 = 46 m.
Answer: the perimeter of this pool is 46 m.