(a) Find the total weight of 9 persons?
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Answered by
2
Answer:
Let the weight of one person be =' x' kg
So, weight 9 people= 9×x= 9x kgs.
Answered by
0
Answer:
I hope this is good for u!!!
Step-by-step explanation:
the average weight of 9 persons =50 kg.
Total weight of 9 persons =50 × 9= 450 Kg
the average weight of the first 5 persons = 45 kg
Total, the weight of 5 persons =45 ×5= 225 Kg
Whereas, the average weight of the last 5 persons = 55 kg
Total weight of last 5 Persons =55×5=275 Kg
Let the weight of 5th person =x kg
→→→5th person is included two times.
So, Weight of 5th Person = 275 +225-450
=500 - 450
=50 Kg
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