The average of the marks scored by Amit in 5 subjects is 72. If the average of the marks scored in 3 of these subjects is 70, then what is the average of the marks in the remaining subjects?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 75
The sum of the numbers of the five subjects = 72 × 5 = 360
Sum of the marks of the three subjects = 70 × 3 = 210
So, the sum of the two subjects = 360 - 210 = 150
So, the average of the two subjects = 150/2 = 75