Question

William fills 1/3 of a water bottle in 1/6 of a minute. How much time will it take him to fill the bottle?

Answer 1

1/3 of the bottle was filled in 1/6 of a minute.

We want to achieve

3/3=1

of the bottle filled, as this will mean the bottle is full.

Since

3/3=3×1/3

, we can find the total time as:

3×1/6=3/6=1/2.

So it will take

1/2 of a minute to fill the bottle.