The average weight of 7girls is 45 kg.if one more girl is included,the average becomes 43kg.what is the weight of the included girl?
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Step-by-step explanation:
The average weight of 7 girls is 43kg.
The total weight of those 7 girls is 7 x 43 kg = 301 kg
If one more girl is included, the average becomes 45 kg.
Therefore, total weight of 8 girls = 8 x 45 kg = 360 kg
Therefore weight of the included girl = (360 - 301) kg = 59 kg.
Answered by
11
The average weight of 7 girls is 43kg.
The total weight of those 7 girls is 7 x 43 kg = 301 kg
If one more girl is included, the average
becomes 45 kg.
Therefore, total weight of 8 girls = 8 x 45 kg = 360 kg
Therefore weight of the included girl = (360 - 301) kg = 59 kg.
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