RRB RPF RPSF SI and CONS Model Papers 4 with solutions

Question : 28 of 122

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In a mixture of 25 litres, the ratio between acid and water is 4 : 1. Another 3 litres of water is added to the mixture. The ratio between acid and water in the new mixture is

5 : 2
2 : 5
3 : 5
5 : 3

Validate

Solution:

(1) Acid in the mixture

= {4}/{5} ×25=20

liters
Therefore, Water in the mixture = 25 – 20 = 5 liters
After adding 3 liters water of mixtures,
New ratio = 20 : 8 = 5 : 2.

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