Question

the pro shop at the wildwood country club ordered two brands of golf balls. par one balls cost $2.10 each and the supra balls cost $1.00 each. the total cost of par one balls exceeded the total cost of the supra balls by $330.00 . if an equal number of each brand was ordered, how many dozens of each brand were ordered?

Answer 1

Explanation:

x = number of par one balls ordered.

y = number of supra balls ordered.

2.10×x = 1.00×y + 330

2.1x = y + 330

y = 2.1x - 330

x = y (equal number was ordered).

so,

x = 2.1x - 330

0 = 1.1x - 330

330 = 1.1x

x = 330/1.1 = 300

y = x = 300

1 dozen = 12 pieces

so,

300/12 = 25 dozens

25 dozens balls were ordered from each brand.