RRB Group D 2-Nov-2014 Shift 2 Solved Paper

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Question : 79 of 100

Marks: +1, -0

Find the ratio in which rice at ₹ 7.20 a kg should be mixed with rice at ₹ 5.70 a kg to produce a mixture worth ₹ 6.30 a kg.

1 : 3
2 : 3
3 : 4
4 : 5

Solution:

Mean price

=₹ 6.30

Ratio of

\;\;

mixture

\;{6.30-5.70}/{7.20-6.30}=\;{0.60}/{0.90}=2: 3

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