Answer: It will take 2/6 or 1/3 of an hour to fill the pool.
Explanation:
If 1/2 of the pool has been filled after 1/6 of an hour, you can find the answer by doing 2/1 x 1/2 = 2, to represent the amount when the pool is filled fully. Now, you must multiply 1/6 x 2/1 = 2/6, this represents the amount of time to fill up the pool fully. Therefore, it will take 2/6 of an hour or 1/3 of an hour to fill the pool.