Question

Arun scores 36 marks in English 44 marks in Hindi and 75 marks in maths and X in Science if average score is 50 find the value of x​

Answer 1

x = 45

Explanation:

The average is calculated as

average =
`(score)/(count)`

here the average = 50 , thus

`(36+44+75+x)/(4)` = 50

Multiply both sides by 4

36 + 44 + 75 + x = 200

155 + x = 200 ( subtract 155 from both sides )

x = 45