The average weight of 19 students is 15kg. by the admission of a new student the average weight is reduced to 14.9 kg. the weight of the new student is ?
Choose the correct choice from the following
A) 10.6 kg B) 10.8 kg C) 11 kg D) 13 kg E) None
Answer   Weight of new student = Total weight of all 20 students - Total weight of initial 19 students   = (20 x 14.9 - 19 x 15) kg   = 13 kg.   Correct Option: 13 kg
<result>D</result>
The average weight of 19 students is 15kg. by the admission of a new student the average weight is reduced to 14.9 kg. the weight of the new student is ?