5. The average weight of 7 girls is 43kg. If one more girl is included, the average becomes
45kg. What is the weight of the included girl.
Answers
Answered by
3
Answer:
43×7/7=43
43×7+x/8=45
301+x=360
x=59
so wi
Answered by
7
Answer:
Weight of the included girl = 59 kg.
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.
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