SSC CHSL Model Paper 7

Question : 30 of 100

Marks: +1, -0

In a mixture of milk and water the proportion of water by weight was 75% if in the 60 gms mixture 15 gms water was added, what would be the percentage of water in the new mixture?

75%
80%
90%
100%

Validate

Solution:

In 60 gm. of mixture,
Quantity of water =

60×75/100=45

gm
Quantity of milk = 15 gm
After mixing 15 gm of more water, Quantity of water in new mixture

=45 +15 = 60

gm
∴ Quantity of water in 75 gm of mixture = 60 gm
∴ 100 gm of mixture will contain

=60/75×100=80%

of water

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