Question

During a catered lunch,an average of 4 cups of tea are poured per minute. The lunch will last 2 hours. How many gallons of tea should the caterer bring if there are 16 cups in one gallon?

Answer 1

4(average cups per minute) times 120(2 hours in minutes)= 480 divided by 16(cups in gallon) = 30 gallons

Answer 2

30 gallons

Explanation:

Given,

The number of cups poured in one minute = 4,

Also, 1 hour = 60 minutes,

⇒ 2 hours = 2 × 60 = 120 minutes,

Thus, the number of cups poured in 2 hour = 120 × number of cups in one minute,

= 120 × 4

= 480,

Now, 1 gallon = 16 cups,

`\implies 1\text{ cup} =(1)/(16)\text{ gallon}`

Thus, the number of gallons in 480 cups = 480 × number of gallons in 1 cup

`=480* (1)/(16)`

= 30

Hence, 30 gallons should be catered.