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The average weight of a group of 54 girls was calculated as 58 kg .It was later discovered that the weight of one of the girls was read as 70 kg ,whereas her actual weight was 65kg. What is the actual average weight of the group of 54 girls ?

57.5

58.5

57.9

55.8

Explanation:

Solution:
Actual weight of 54 girls = 54 * 58 + 65 – 70 = 3127
Required actual average weight = 3127/ 54 = 57.9

By: Pranav Gupta

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