the average school fee par month of three boys is 425 .if average fee of two of them is 400.find monthly school fee of third boy.
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0
Answer:
Step-by-step explanation:
Let the third boys average fee be ₹ x according to the question 425 = 400 + x , 425 - 400 = x , ₹25 = x therefore the average monthly fee of the third boy is ₹ 25
Answered by
3
Step-by-step explanation:
- average of three boys=425
- sum of three boy=3×425
- =1275
- average of two boys=400
- sum of two boys=400×2
- =800
- so,
monthly fee of third boy=1275-800
=475
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