Question

The average marks scored by boys and girls in a class

Average marks of all the students 168040 42 Applying Alligation we get Number of boys in the class 58 40 25

are 48 and 32, respectively. The total marks obtained by the entire class is 1680, with 40 students in total. How many boys are there in the class?

A 15

B 20

C 30

D 25

E None of these

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