Problema Solution
You travel a toll road that requires a 75-cent token. If you buy a special car-pool sticker for $12.00, then the tokens cost only 60 cents and you can use the express lane. At what point is the car-pool plan cheaper?
Answer provided by our tutors
Let 'x' represent the number of tokens.
1200 + 60x <= 75x
1200 <= 75x - 60x
1200 <= 15x
1200/15 <= x
80 <= x
For more then 80 tokens the car-pool plan is cheaper.