How many litres of a 30% alcohol solution should be added to 40 litres of a 60% alcohol solution to prepare a 50% solution? `20` b. `24` c. `30` d. 32

How many litres of a 35% acid solution must be added to 500 litres of a 16% acid solution so that acid content in the resulting mixture may be more than 25% but less than 30% ?

How much pure alcohol be added to 400 ml of a 15% solution to make its strength 32%?

How much pure alcohol be added to 400 ml of a 15% solution to make its strength 32%?

in 30litres of a solution 90% is alcohol then how much water needs to b added to make it 80%.

A manufacturer has 600 litres of a 12% solution of acid. How many litres of a 30% acid solution must be added to it so that acid content in the resulting mixture will be more than 15% but less than 18%?

A manufacturer has 600 litres of a 12% solution of acid. How many litres of a 30% acid solution must be added to it so that acid content in the resulting mixture will be more than 15% but less than 18%?

A manufacturer has 600 litres of a 12% solution of acid. How many litres of a 30% acid solution must be added to it so that acid content in the resulting mixture will be more than 15% but less than 18%?