Question

A container holds 8 gallons of water. If 4/5 of a gallon is added to the container each hour, how many hours would it take to fill the container?
A.10
B.20
C.32
D.40

Answer 1

Answer:

10.

Step-by-step explanation:

10 is the correct answer. Divide the total number of gallons by the amount added each hour. Remember that dividing is the same as multiplying by the reciprocal. Reduce answer if necessary.  

8 ÷  4 /5 =  8 /1 ×  5 /4 =  40/ 4 = 10

Answer 2

1 hour = 4/5 gallon
8 gallon ÷ 4/5
= 8/1 × 5/4
= 40/4
= 10

the answer is A