Cafe a offers 2 free bottled waters or juices for every 20 purchased. cafe b offers 3 bottled waters or juices for every 25 purchased.
a) what is cafe a's ratio of free drinks to purchased drinks?
b) what is cafe b's ratio of free drinks to purchased drinks?
c) if you purchased 50 drinks at each cafe how many free drinks would you get?

Cafe A offers 2 free bottled waters or juices for every 20 purchased that means:

Cafe A = 2/20 = 1/10

Cafe B offers 3 free bottles of water and juices for 25 purchased that means:

Cafe B = 3/25

If you purchase 50 drinks at cafe A, the amount of free drink will be:

Cafe A free drink = 50 * 1/10 = 5

Cafe A will offer 5 free drinks on the purchase of 50 drink.

Cafe B free drink = 50 * 3/25 = 6

Cafe B will offer 6 free drinks on the purchase of 50 drink.

60%