Musicat wrote:The basic one-way air fare for a child aged between 3 and 10 years costs half the regular fare for an adult plus a reservation charge that is the same on the child's ticket as on the adult's ticket. One reserved ticket for an adult costs $216 and the cost of a reserved ticket for an adult and a child (aged between 3 and 10) costs $327. What is the basic fare for the journey for an adult?
A $111
B $52.5
C $210
D $58.5
E $6
We can PLUG IN THE ANSWERS, which represent the basic adult fare.
When the correct answer choice is plugged in, the total cost for a child's ticket and a reserved adult ticket = 327.
Since a reserved adult ticket = 216, it seems unlikely that the price of a basic adult ticket would be as low as 6, 52.5, 58.6, or 111.
The correct answer is probably
C.
C: 210
Here:
Reservation charge = (reserved adult fare) - (basic adult fare) = 216 - 210 = 6.
Basic child fare = (half basic adult fare) + (reservation charge) = (1/2)(210) + 6 = 111.
Basic child fare + reserved adult fare = 111 + 216 = 327.
Success!
The correct answer is
C.
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