SOLUTION: All the 35 families on an estate possess either a car or a bike or both. 18 families have cars and 27 have bikes. (a)How many families have both cars and bikes? (b)How many fam

Algebra ->  Finance -> SOLUTION: All the 35 families on an estate possess either a car or a bike or both. 18 families have cars and 27 have bikes. (a)How many families have both cars and bikes? (b)How many fam      Log On


   



Question 833327: All the 35 families on an estate possess either a car or a bike or both.
18 families have cars and 27 have bikes.
(a)How many families have both cars and bikes?
(b)How many families have cars and not bikes?

Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
18%2B27=45 and that is 10 more than 35 ,
(a) so the highlight%2810%29 families counted twice have both a car and a bike.
(b) Of the 18 families that have a car, there are 10 that also have a bike,
so there are 18-10=highlight%288%29 families that have only a car, but no bike.