Question

Ritesh's Mathematics and Science marks is 100 more than English. The
average of three subjects numbers is 60. Find the marks in English​

Answer 1

Answer:

Let the marks scored by Ritesh in English be x

=] Mark's scored by him in maths and science is 100 + x

=] average / mean of observations

= (sum of observations)/(no. of observations)

=} Given , here avg. score is 60marks

=} 60 = (x + 100 + x)/3

=} 180 = 2x + 100

=} 2x = 80

=} x = 40.

therefore , Marks scored by Ritesh in English is 40 marks

Answer 2

Answer:

marks in English = 40

Step-by-step explanation:

s+m+e=180

s+m=e+100

e+100+e=180

2e=80

e=40