Question
Mathematics Question on Average
At Narmada Sarovar Bachao (NSB) demonstration, supporters of Ms Patkar outnumbered the police by 9 : 1 The police arrested 135 NSB supporters averaging 5 for every 3 policemen. How many supporters of NSB were there in the demonstration ?
A
1215
B
665
C
405
D
None of the above
Answer
None of the above
Explanation
Solution
The number of police involved in the security operation
= 53×135
=3×27
= 81
∴ the required number of supporters
= 81×981×9
= 729
Therefore, the correct option is (D): None of the above