1.

A survey shows that in a city 60% familes own a car, 80% families have a scooter, and 40% have a bicycle. Also 30% own both a Car and scooter, 35% Car and bicycle and 25% scooter and bicycle, and some families owns all the three. Now the families who have neither of the three can be

Answer»

0.07
0.11
0.12
0.15

Solution :LET A= FAMILIES own a car
B = families own a Scooter
C = families own a BICYCLE
We have to find
`rArr n(A. cap B. cap C.) = n(U) - n(A cup B cup C) = 100-[Sigma n(A) - Sigma n(A cap B)+n(A cap B cap C)]`
`=100 - [(60 + 80 + 40) - 90 + x]`
`= 100 - [90 +x]`
`10 - x`
[Here `x = n(A cap B cap C) gt 0` and `0 lt x le 10`] So, possible ANSWERS is 7%


Discussion

No Comment Found

Related InterviewSolutions