The average weight of 29 students is 28 kg. By the admission of a new student, the average weight is reduced to 27.3 kg. The weight of the new student is Select the correct option: A) 22 kg B) 21.6 kg C) 22.4 kg D) 21 kg E) 7 Kg
Exp . The total weight of 29 students = 29* 28   The total weight of 30 students = 30* 27.3   Weight of the new student = ( 30*27.3 – 29*28)   = 819 - 812= 
<gadget id="calculator">819 - 812</gadget>
<output>7</output>
7   Answer:7 Kg
<result>E</result>
The average weight of 29 students is 28 kg. By the admission of a new student, the average weight is reduced to 27.3 kg. The weight of the new student is