Question

Read the information and answer the question
based on it.
RRB NTPC 2016
In the examination, a student gets an average of
76.2 marks. The total marks for the five subjects
are 500. His marks in 4 subjects are mentioned.
Calculate the marks obtained by the students in
Social Science marked as 'x' in the table below
Subject Marks Obtained
Maths 76
English 87
Sanskrit 83
Science 78
Social Science x
(a) 60
(b) 58
(c) 57
(d) 54
​

Answer 1

Given:

Total marks: 500

Average: 76.2

So,

(total marks)/5=76.2

Let marks in S.S. be x.

(76+87+83+78+x)/5=76.2

Hence, x=57

SO, (c) 57 is correct.