Average weight of 20 students is 50kg. The average of 8 of them is 35kg. Find the
average of the remaining.
- 1) 65kg
2) 60kg 3) 70kg 4) 50kg 5) None of these
tie 20 In that the average of 20 students is 40 and the
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Answer:
60kgs
Step-by-step explanation:
Average weight of 20 students is 50kg
Total weight of 20 students = 50*20=1000
The average of 8 of them is 35kg
total weight of 8 of them is 35*8 = 280
remaining are 20-8=12
weight of remaining students = total - 8 = 1000-280= 720
average weight becomes = 720/12 = 60
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