Question

THE A.M. OF 30 STUDENTS IS 42. AMONG THEM TWO GOT ZERO MARKS , THEN A.M. OF REMAINING STUDENTS IS ?

Answer 1

The AM of 30 students = 42
sum of 30 students
------------------------------ =42
30
sum of the 30 students = 42*30
=1260

Now, two got zero

so new AM of 30 students = 1260/28
= 45.

so the answer is 45.

Answer 2

Step-by-step explanation:

no. of student =30

30 student marks =42x30

30 student marks=1260

2 student got 0 marks

then average marks of remaining student= 1260/28=45

answer is 45