2 water tanks are being set up.Each one starts with 100 liters of water.The first tank fills at the rate of 15 liters per min.The second tank fills at the rate of 20 liters per min.When will the first tank contain 7/3 as much as the second tank?

Answer 1

I suspect a typo. Since they start with the same amount, and the first tank fills more slowly, it will never have more than the second tank.