The average weight of students in a class is 43 kg. Four new students arc admitted to the class whose weights are 42

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Q 1720501411.     The average weight of students in a class is 43 kg. Four new students arc admitted to the class whose weights are 42 kg, 36 kg ,39 kg and 42.5 kg , respectively . Now the weight of the student of the class is 42.5 kg. The number of students in the begining was.
CDS 2015 Paper-2
A

10

B

15

C

20

D

25`

HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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