A vending machine dispenses gumballs in a regularly repeating cycle of ten different colors. If a quarter buys 3 gumballs, what is the minimum amount of money that must be spent before three gumballs of the same color are dispensed ?
a. $1
b. $1.75
c $2
d. $2.25
e. $2.5
Pls explain why the answer choice, as given in Kaplan Workbook, is b
a. $1
b. $1.75
c $2
d. $2.25
e. $2.5
Pls explain why the answer choice, as given in Kaplan Workbook, is b
