The milk and water in a mixture are in the ratio 7 5 When 15 litres of water are added to it the rat...........

Quantitative Aptitude ( CCS) Mixture and Alligation

The milk and water in a mixture are in the ratio 7:5. When 15 litres of water are added to it, the ratio of milk and water in the new mixture becomes 7:8. Find the total quantity of water in the new mixture?

35 litres

40 litres

60 litres

96 litres

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Explanation:

let's, milk = 7x
water = 5x
after adding 15L of water.
water = 5x + 15.
so,
7x / (5x + 15) = 7/8
=> 21x = 105
=> x= 5.
So, water = 5x + 15
= 5*5 + 15
= 40