The average weight of 19 students is 15kg. by the admission of a new student the average weight is reduced to 14.8 kg. the weight of the new student is?

10.6 kg
10.8 kg
11 kg
14.9 kg

Correct Answer: 11 kg

Explanation:

Weight of new student = Total weight of all 20 students - Total weight of initial 19 students
= (20 x 14.8 - 19 x 15) kg
= 11 kg.

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