Question

A student scored 65 marks in I language, 50 marks in Science, 55 marks in Social
Science and some marks in Mathematics. If the average marks scored by him
in all the four subjects is 60, then the marks scored by him in Mathematics is​

Answer 1

Answer:

The student scores "70" marks in Mathematics.

Step-by-step explanation:

•MARKS IN LANGUAGE = 65

•MARKS IN SCIENCE = 50

•MARKS IN SOCIAL SCIENCE = 55

•AVERAGE MARKS = 60

•°• MARKS IN MATHEMATICS = x

WKT,

55 + 65 + 50 + x/4 = 60

→ 170 + x/4 = 60

→ 170 + x = 240 (60 x 4 = 240)

→ 240 - 170 = 70 = x

SO,MARKS IN MATHEMATICS = 70