Question

In 30 litres mixture of acid, the ratio of acid and water is 2:3. What amount of water should be added to the mixture so that the ratio of acid and water becomes 2:5? (1) 10 litres (2) 15 litres (3) 18 litres (4) 12

Answer 1

it tells become 2:5 so the ratio is 3 multiply with 5 so it is 15liters