Question

A swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only had 2 million liters of water in it.
What percent of the water evaporated?

Answer 1

It is given in the question that, the swimming pool had 2.5 million liters of water in it. Some water evaporated, and then the pool only had 2 million liters of water in it.

So amount of water evaporated is

$= 2.5 -2 = 0.5 million$

And percentage of water evaporated is

$= \frac{0.5}{2.5} *100 = 20%$

Therefore 20% of water evaporated .

Answer 2

2,000,000/2,500,000= 80/100 so the remaining (20%) would be the amount evaporated
answer= 20%