Frin a group of 8 boys a boy left and a new boy weighing 56 kg was included in the team.thus the average incresed by 2.5 kg what is the weight of the boy who left the group?
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2
Total weight increased = (8 x 2.5) kg = 20 kg.
Weight of new person = (65 + 20) kg = 85 kg.
Weight of new person = (65 + 20) kg = 85 kg.
Answered by
1
Answer:
Increased weight is = 2.5 *8 = 20kg
If new boy is of 56 kg then obvious old boy must be less than 20 kg
So the weight of old boy was (56-20) =36kg
Step-by-step explanation:
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