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Average weight of a group of 11 students is 37 kg. When a student left the group, then average weight of the group becomes 35 kg. What is the weight (in kg) of the student who left?1). 652). 593). 574). 70 |
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Answer» ⇒ AVERAGE weight of 11 students = 37 ⇒ SUM of weights of 11 students = 37 × 11 = 407 Now, average weights of 10 students = 35 ⇒ Sum of weights of 10 students = 35 × 10 = 350 ∴ Weight of the student who LEFT = 407 - 350 = 57 KG |
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