Since Sarah used 1/6 of the bottle of shampoo on her dog Sam, the amount left is 1 - 1/6 = 5/6 of the bottle.
Then she used 1/3 of the remaining amount on her dog Fred, which is (1/3) * (5/6) = 5/18 of the bottle.
Therefore, Sarah used 5/18 of the bottle of shampoo on Fred.
The answer is C) 5/18.
Sarah used 1/6 of a bottle of shampoo on her dog Sam, and 1/3 of what was left on her dog Fred. How much of the bottle of shampoo did she use on Fred?
A 1/6
B 1/3
C 5/18
D 1/9
1 answer