Q17 of 174 Page 577

Arun scored 36 marks in English, 44 marks in Hindi, 75 marks in mathematics and x marks in science. If he has secured an average of 50 marks, find the value of x.

Given,


Marks obtained in English = 36


Marks obtained in Hindi = 44


Marks obtained in Maths = 75


Marks obtained in Science = x


Average marks of all subjects = 50


We know that,


Average marks =


= 50 =


= 50 × 4 = 155 + x


= x = 200 – 155 = 45.


Hence, Marks in science = 45.


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