Question

The average weight of 15 girls in a group is 24 kg when a new girl included the average weight increases by 2. What is the weight of the new girl ?

Answer 1

Answer:

56 kg

Step-by-step explanation:

Average weight of 15 girls = 24 kg

Total weight of 15 girls = 24 x 15 = 360 kg

Average after including a new girl = 24 + 2 = 26 kg

Total weight of 16 girls = 26 x 16 = 416 kg

Weight of the new girl = Total weight of 16 girls - Total weight of 15 girls = 416 - 360 = 56 kg

Hence the required answer is 56 kg.

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Answer 2

Answer:

56kg

Step-by-step explanation:

let the weight of new girl is x

previously there are 15 girls and average is 24

so the sum total weight of 15 girls is 24*15 is 360

when new girl added so the total sum will become

360+x=26*16

x will be 56kg