Question

Twelve members of a band purchase one beverage each during a break at practice. Exactly 5 of the 12 members bought bottled water. At this rate, how many band members would you expect to buy bottled water, if all 168 members purchase a beverage?

Answer 1

70

Explanation:

You have to use ratios. If 5 of 12 members bought water, then x of 168 members will buy water.

`(5)/(12) = (x)/(168)\\12x = 840\\x = 70`

70 members will buy bottled water.