SOLUTION: All of the customers at a fruit store purchased some apples or some bananas. If 75% of the customers purchased apples and 40% of them purchased bananas, while 9 customers bought bo

SOLUTION: All of the customers at a fruit store purchased some apples or some bananas. If 75% of the customers purchased apples and 40% of them purchased bananas, while 9 customers bought bo

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Question 295953: All of the customers at a fruit store purchased some apples or some bananas. If 75% of the customers purchased apples and 40% of them purchased bananas, while 9 customers bought both, how many customers did the store have?

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
.75x=a
.4x=b
x=a+b-9
a=45., b=24., x=60.
45+24=69
3/4*60=45
4/10*60=24
45-9=36
24-9=15
9 bought both
36+15+9=60
60 different customers

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