The average weight of 29 students is 28 kg. By the admission of a new student, the average weight is reduced to 27.5 kg. The weight of the new student is
Options:
A) 22 kg B) 21.6 kg C) 22.4 kg D) 13 kg E) None of these
Exp . The total weight of 29 students = 29* 28   The total weight of 30 students = 30* 27.5   Weight of the new student = ( 30*27.5 – 29*28)   = 825 - 812= 
<gadget id="calculator">825 - 812</gadget>
<output>13</output>
13   Answer:13 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 27.5 kg. The weight of the new student is