Question
Average weight of 12 nurses is 32 kg. If the weight of
one more nurse is included, then average weight is increased by 2 kg. Find the weight of the newly added nurse.Solution
Total weight of 12 nurses: 12×32=384 kg New average weight when one more nurse is included: 32+2=34 kg Total weight of 13 nurses: 34×13=442 kg Weight of the newly added nurse: 442−384=58 kg So, the weight of the newly added nurse is 58 kg.
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