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  • Brainly User
2014-04-24T13:33:29+05:30

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Consider the total to be 100
on further calculation I got the answer to be 30
tell me if u want the working

0
2014-04-24T14:14:54+05:30
B = bicycle ,m = motorbike ,c = car
% b = 85 ,% m = 40 ,%c = 20 %(b intersection m) = 32, %(m intersection c) = 10,%(c intersection b) = 13 ,%(b union m union c) = 100 , %(b intersection m intersection c) = ?
apply formula
(b union m union c) = b + m + c - (b intersection m) - (m intersection c) - (c intersection b) + (b intersection m intersection c)
100 = 85 + 40 + 20 - 32 - 10 - 13 + (b intersection m intersection c)
(b intersection m intersection c) = 10
hence percentage of people who use all the three type of vehicals = 10%   
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