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RRB Group D Model Paper 7 with solutions

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Question : 47

Total: 100

The average age of a class is 15.8 years. The average age of the boys in the class is 16.4 years while that of the girls is 15.4 years. The ratio of boys to girls in the class is

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

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