RRB Group D Model Paper 2 with solutions

Question : 86 of 100

Marks: +1, -0

A vessel is filled with liquid, 3 parts of which are water and 5 parts syrup. How much of the mixture must be drawn off and replaced with water so that the mixture may be half water and half syrup?

Validate

Solution:

(3) Using allegation rule:

So, the required ratio is 2 : 8 = 1 : 4. So, the quantity of water added is

1 /5

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