Direction: The following table shows the number of students of 7 colleges A, B, C, D, E, F, G participating in extra-curricular activities :
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The ratio of total number of students in II and I is :
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- 1 : 2
- 9 : 20
- 19 : 7
- 21 : 10
Correct Option: B
From above given table ,
Total number of students in II = 100 + 200 + 200 + 100 + 100 + 100 + 100 = 900
Total number of students in I = 200 + 300 + 500 + 100 + 400 + 300 + 200 = 2000
∴ Required ratio = total number of students in II : total number of students in I
Required ratio = 900 : 2000 = 9 : 20
