Question

Two gallons of a mixture of spirit and water contain 12 % of water. They are added to 3 gallons of another mixture, containing 7 % of water and half a gallon of water is then' added to the whole. Find the percentage of water in the resulting mixture

Answer 1

Answer:

Step-by-step explanation:

Given Two gallons of a mixture of spirit and water contain 12 % of water. They are added to 3 gallons of another mixture, containing 7 % of water and half a gallon of water is then' added to the whole. Find the percentage of water in the resulting mixture

Now 2 gallons of water = 2 x 12/100 = 24/100 = 0.24

3 gallons of water = 3 x 7/100 = 21/100 = 0.21

So total mixture will be 2 + 3 + 1/2 = 11/2 gallon

Now gallons of water = 0.24 + 0.21 + 0.50 = 0.95 gallon

So 0.95 x 100 / 5.5 = 95/5.5

= 17.27%

The percentage of water in the resulting mixture is 17.3%