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?  Choose the correct choice from the following answers:  A) 66  B) 74  C) 78  D) 80  E) None of these
Explanation:   Number of subjects = 6   Average of marks in 6 subjects = 75   Therefore total marks in 6 subjects = 75 * 6= 
<gadget id="calculator">75 * 6</gadget>
<output>450</output>
450   Now, No. of subjects= 5   Total marks in 5 subjects = 74 * 5= 
<gadget id="calculator">74 * 5</gadget>
<output>370</output>
370   Therefore marks in 6th subject= 450 – 370 = 80   ANSWER 80
<result>D</result>
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?