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.
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.
Rate this question :
Find the missing frequencies in the following frequency distribution if it is known that the mean of the distribution is 50.
In a frequency distribution, the mild-value of a class is 10 and width of each class is 6. The lower limit of the class isRS Aggarwal & V Aggarwal - Mathematics
Find the median of the following data
92, 35, 67, 85, 72, 81, 56, 51, 42, 69RD Sharma - Mathematics