SSC CGL Model Paper 12

Question : 58 of 100

Marks: +1, -0

80 litre mixture of milk and water contains 10% milk. How much milk (in litres) must be added to make water percentage in the mixture as 80% ?

Solution:

The quantity of the milk

=80×10/100=8

∴ The quantity of water

= 8 0 -8 = 7 2

Let x litres must be added.
According to the question,

{8+x}/72=20/80

⇒{8+x}=72/4

⇒x=10\litre

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