Ruben bought 2 large popcorn buckets and 4 small drinks for $20. Lucia bought 2 large popcorn buckets and 2 small drinks for $14. What was the cost of the large popcorn and the small drink?

Answer 1

2b +4d = 20

b +2d = 10

2b +2d = 14

b + d = 7

b-b +2d -d = 10-7

d = $3 for a drink

b = $4 for popcorn