Question

During the past year, Mrs. Singh purchased 37 books at a wholesale club store. She purchased softcover books for $5.50 each and hardcover books for $13.50 each. The total cost of the books was $355.50 . How many of each type of book did she purchase?

Answer 1

x+y=37-------(1)

5.5x+13.5y=355.5-----(2)

Put x=37-y in eqn 2

5.5(37-y)+13.5y=355.5

203.5-5.5y+13.5y=355.5

8y=152

y=19

x=18

Explanation: