The average weight of 29 students is 28 kg. By the admission of a new student, the average weight is reduced to 27.4 kg. The weight of the new student is
Choose the correct option.
A) 22 kg
B) 21.6 kg
C) 22.4 kg
D) 10 kg
E) None of these
Exp . The total weight of 29 students = 29* 28   The total weight of 30 students = 30* 27.4   Weight of the new student = ( 30*27.4 – 29*28)   = 822 - 812= 
<gadget id="calculator">822 - 812</gadget>
<output>10</output>
10   Answer:10 kg
<result>D</result>
The average weight of 29 students is 28 kg. By the admission of a new student, the average weight is reduced to 27.4 kg. The weight of the new student is