Arun scored 36 marks in English 44 marks in Hindi 74 marks in mathematics and x marks in science If ...

Name: Lido Learning Solutions
Uploaded: 2022-01-05T06:16:12+00:00
Description: R S Aggarwal Solutions - Mathematics - Class 9 Mean Median And Mode Of Ungrouped Data Mean Median And Mode Of Ungrouped Data Exercise 18A solutions written by Lido's expert teachers

Question

Arun scored 36 marks in English 44 marks in Hindi 74 marks in mathematics and x marks in science If he has secured an average of 50 marks find the value of x

Accepted Answer

It is given that

Average marks in 4 subjects = 50

So the total marks = 50 (4) = 200

We know that

36 + 44 + 75 + x = 200

On further calculation

155 + x = 200

So we get

x = 200 – 155

By subtraction

x = 45

Therefore, the value of x is 45

RS Aggarwal Solutions Class 9 Mathematics Solutions for Mean Median And Mode Of Ungrouped Data Exercise 18A in Chapter 18 - Mean Median And Mode Of Ungrouped Data