A student sold candy bars and bags of popcorn for a school fund-raiser.
• The student sold a total of 240 candy bars and bags of popcorn
• The price of each candy bar was $1and the price of each bag of popcorn was $2.
• The student sold $300 worth of candy bars and bags of popcorn.
How many candy bars did this student sell for the school fund-raiser?
A 80
B 60
C180
Let's assume the student sold x candy bars and y bags of popcorn.
According to the information given:
x + y = 240 ---(equation 1)
1x + 2y = 300 ---(equation 2)
We can solve this system of equations using substitution or elimination method.
Using elimination:
Multiply equation 1 by 2:
2x + 2y = 480 ---(equation 3)
Subtract equation 2 from equation 3:
(2x + 2y) - (1x + 2y) = 480 - 300
2x - x + 2y - 2y = 180
x = 180
Therefore, the student sold 180 candy bars for the school fund-raiser.
Option C is correct.