RRB Group D 19-Sep-2018 Shift 1 Solved Paper

Question : 7 of 100

Marks: +1, -0

The initial ratio of sugar and flour in recipe was 17: 28. With 27 kg of the recipe, Sunita added more flour to make the sugar to flour ratio 2: 5. How much flour did Sunita later add?

8.5 kg
8.1kg
8.7 kg
8.3 kg

Validate

Solution:

Initially, Sugar

=\;{17}/{45} × 27=10.2 \; {kg}

Flour

=\;{28}/{45} × 27=16.8 \; {kg}

adding x kg flour.

\;{10.2}/{16.8+x}=\;{2}/{5}

⇒ 51=33.6+2 x

⇒ \;\; x=8.7 {kg}

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