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Source: — Problem Solving |

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by Rahul@gurome » Thu Dec 23, 2010 4:11 am
Number of such people = Green shaded region in the Venn diagram = Total - Other regions = 90 - (29 + 17 + 14 + 4 + 9 + 2) = 90 - 75 = 15

Required percentage = (15/90)*100 = 16.677 ≈ 17

The correct answer is B.
Last edited by Rahul@gurome on Thu Dec 23, 2010 5:08 am, edited 1 time in total.
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by anuptvm » Thu Dec 23, 2010 4:24 am
The answer should be 17%. Rahul's formula to calculate the green area is correct, but the calculation is wrong.
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by Rahul@gurome » Thu Dec 23, 2010 5:09 am
Thanks Anup!
Edited it.
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by N:Dure » Thu Dec 23, 2010 6:33 pm
Rahul@gurome wrote:Number of such people = Green shaded region in the Venn diagram = Total - Other regions = 90 - (29 + 17 + 14 + 4 + 9 + 2) = 90 - 75 = 15

Required percentage = (15/90)*100 = 16.677 ≈ 17

The correct answer is B.
Thanks Rahul for your help. I thought I'd have to adjust for the intersection between them, but apparently they're already subtracted :)
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