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प्रश्न
The average weight of 8 persons increases by 2.5 kg when a new person comes in place of one of them weighing 65 kg. What must be the weight of the new person?
विकल्प
76 kg
75.5 kg
85 kg
49.25 kg
MCQ
उत्तर
85 kg
Explanation:
Total weight increased
= (8 x 2.5) kg = 20kg
Weight of new person = ( 65 + 20) kg = 85 kg
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