Question

the milk and water in a mixture are in the ratio 7:5 when 15 liter of water are added to it the ratio of milk and water in the new mixture becomes 7:8 the total quantity of water in the new mixture is ​

Answer 1

It's quantity will be 18.75 litres

Answer 2

Answer:

Amount of water in the second mixture is 40 litres.

Step-by-step explanation:

Let the initial quantity of milk be X litres and the initial quantity of water be Y litres

According to the first condition

X/Y = 7/5

5X = 7Y

According to the second condition

X / Y + 15 = 7/8

8X - 7Y = 105

Substitute 7Y = 5X in the above equation and you get

8X - 5X = 105

X = 35 litres

Therefore 7Y = 5 x 35

Y = 25 litres

Therefore the initial quantity of milk is 35 litres and of water is 25 litres.

15 litres of water was added in order to make the second mixture

Therefore amount of water in the second mixture is 25 + 15 = 40 litres

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