The average marks in a class of 50 students is 72. If the average mark – McqOptions

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1.	The average marks in a class of 50 students is 72. If the average marks of boys and girls in that subject are 70 and 75 respectively, then find the number of boys in the class -
A.	20
B.	35
C.	25
D.	30
Answer» E.

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