VJesus12 wrote: ↑

Sun Jun 14, 2020 8:16 am

Other than gas, a gas station sells on average 12 coffees for $1.25 each, 3 candy bars for 90 cents each, and other products worth $15 every hour. If the gas station has 30 customers an hour and each customer purchases exactly one item, what are its average sales, excluding gas, per customer?

a) $1.09
b) $1.25
c) $1.40
d) $32.70
e) $40.00

[spoiler]OA=A[/spoiler]

Source: Veritas Prep

Given the information, since every customer purchases only one item, in an hour 12 coffees, 3 candy bars and other products worth $15 were sold.

No. of customers who purchased coffee or bars = 12 + 3 = 15

Thus, 30 – 15 = 15 customers purchased other products worth $15

Total sales = 12*1.25 + 3*0.90 + 15 = 15 + 2.7 + 15 = $32.70

Average sales per customer = 32.70/30 = $1.09

Correct answer: A

Hope this helps!

-Jay
_________________
Manhattan Review GMAT Prep

Locations: SAT Classes | SAT Tutoring | ACT Tutoring | TOEFL Tutoring | and many more...

Schedule your free consultation with an experienced GMAT Prep Advisor! Click here.

VJesus12 wrote: ↑

Sun Jun 14, 2020 8:16 am

Other than gas, a gas station sells on average 12 coffees for $1.25 each, 3 candy bars for 90 cents each, and other products worth $15 every hour. If the gas station has 30 customers an hour and each customer purchases exactly one item, what are its average sales, excluding gas, per customer?

a) $1.09
b) $1.25
c) $1.40
d) $32.70
e) $40.00

[spoiler]OA=A[/spoiler]

Solution:

The total revenue of the gas station per hour is 12 x 1.25 + 3 x 0.90 + 15 = $32.70. Since there are 30 customers per hour, the average sales amount per customer is 32.70/30 = $1.09.

Answer: A