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The average weight of 6 girls is increased by 2.5 kg when one of the girls whose weight is 38 kg is replaced by a new girl. Find the weight of the new girl. |
46 kg 58 kg 53 kg 49 kg |
53 kg |
Total increment in age of 6 girls = 6 × 2.5 = 15 kg So , Weight of new girl = 38 + 15 = 53 kg |
