Average - Quantitative Aptitude (MCQ) questions for Q. 21067

Q.  Ashok secured average of 75 marks in 6 subjects. If the average of marks in 5 subjects is 74, how many marks did he secure in the 6th  subject?
- Published on 19 Apr 16

a. 66
b. 74
c. 78
d. 80
e. None of these

ANSWER: 80
 
Number of subjects = 6
Average of marks in 6 subjects = 75
Therefore total marks in 6 subjects = 75 * 6 = 450
Now, No. of subjects = 5
Total marks in 5 subjects = 74 * 5 = 370
Therefore marks in 6th subject = 450 – 370 = 80

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