The table given below shows the marks obtained by two students in 6 subjects.

What is the difference between the total marks obtained by A and B in all the 6 subjects.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 30.
Explanation:
The total marks obtained by A in all subjects = (180 + 240 + 360 + 300 + 60 + 330) = 1470
The total marks obtained by B in all subjects = (90 + 420 + 390 + 210 + 270 + 120) = 1500
Now the required difference = 1500 - 1470 = 30.
Hence the difference between the total marks obtained by A and B in all the 6 subjects is 30 marks.