Math, asked by pavi6180, 7 months ago

The mean of marks secured by 50 students in division A of class X is 61, 25 students of division B is 57 and that of 50 students of division C is 55. What will be the mean of marks of the students of three divisions of Class X?

A) 57.1 B) 56.4 C) 59.2 D) 57.8

Answers

Answered by srinivasansrinivasan

0

Answer:

(A)-+&__&''_j;:v::-;;

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