The average weight of a group of 53 girls was calculated as 58 kgs. It was later discovered that the weight of one of the girls was read as 65 kgs., whereas her actual weight was 45 kgs. What is the actual average weight of the group of 53 girls ?(rounded off to two digits after decimal)

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The average weight of a group of 53 girls was calculated as 58 kgs. It was later discovered that the weight of one of the girls was read as 65 kgs., whereas her actual weight was 45 kgs. What is the actual average weight of the group of 53 girls ?(rounded off to two digits after decimal)

A58.62 kgs

B58.37 kgs

C57.37 kgs

D57.62 kgs

Nithin K ? Apr 20 '2017 at 20:43

Answer is 57.62 kgs

Explanation

Actual weight of 53 girls= 53 × 58 + 45 - 65

= 3074 + 45 - 65

= 3054 kg.

Required actual average weight= \(\frac{3054}{53}\)= 57.62 kg

 

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Answer is 57.62 kgs Explanation Actual weight of 53 girls= 53 × 58 + 45 - 65 = 3074 + 45 - 65 = 3054 kg. Required actual average weight= \(\frac{3054}{53}\)= 57.62 kg   Nithin K ? answered Apr 20 '2017 at 20:43 All Comments

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