SOLUTION: A car dealership interviewed every driver who came onto their lot on Tuesday. This produced the following results: there were 34 people who owned trucks and 54 people who owned car

Question 395086: A car dealership interviewed every driver who came onto their lot on Tuesday. This produced the following results: there were 34 people who owned trucks and 54 people who owned cars. If 12 people owned both a truck and a car and 8 people owned neither, how many people were interviewed?
Answer by jrfrunner(365) (Show Source): You can put this solution on YOUR website!
let T = number truck owners
let C=number of car owners
let B=number who own both
let N=number who own neither
===
given T=34, C=54, B=12, N=8
Total interviewed =34+54-12+8=84
--
subtract B=12 because in counting T and C the B is counted twice.

RELATED QUESTIONS
A car dealership interviewed every driver who came onto their lot on Tuesday. This... (answered by richwmiller)

A car dealership interviewed every driver who came onto their lot on Tuesday. This... (answered by richwmiller)

A car dealership interviewed every driver who came onto their lot on Tuesday. This... (answered by nyc_function)

A car dealership interviewed every driver who came onto their lot on Tuesday. This... (answered by Theo)

A car dealership interviewed every driver who came onto their lot on Tuesday. This... (answered by edjones)

Problem says: A car dealership interviewed every driver who came onto their lot on... (answered by stanbon)

A car dealership has 180 cars on their lot. If they increase their inventory be 25%, how... (answered by lenny460)

There are 4 times as many used cars in the car dealership lot as there as new cars. There (answered by dkppathak)