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IBPS RRB Officer Prelims 14 Nov 2016 Shift 3 Paper

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Question : 59

Total: 80

In a class, the average weight of 80 boys is 64 kg and that of 75 girls is 70 kg. After a few days, 60% of the girls and 30% of the boys leave. What would be the new average weight of the class (in kg)? Assume that the average weight of the boys and the girls remain constant throughout.

63
66.09
68.5
65.5
57.5

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