The average of Robert's marks in 6 subjects is 69.5. If his average in five subjects excluding Maths

M4maths Previous Puzzles

06 Jan 2020 Average

The average of Robert's marks in 6 subjects is 69.5. If his average in five subjects excluding Maths is 63.5, how many marks he obtained in Maths?

OPtion

1) 89.5
2) 90.5
3) 99.5
4) 91.5
5) 92.5
6) 93.5
7) 96.5
8) 97.5
9) 98.5
10) None of these

Solution

6*69.5 - 5*63.5 = 99.5

Correct Option: 3 Best Solution (3)