Verified Answer :

1/25 of a minute is 2,4 secs.

1/5 = 2,4s
5/5 = 12 secs

Answer:

12 seconds will be needed to fill the toffee box.

Step-by-step explanation:

Joey takes the time to fill \(\frac{1}{5}\) of a box = \(\frac{1}{25}\) of a minute.

\(\frac{1}{25}\) of a minute = \(\frac{1}{25}\times 60\) seconds

= 2.4 seconds

Now we will use unitary method to get the time to fill a toffee box.

∵ \(\frac{1}{5}\) box is filled in the duration = 2.4 seconds

∴ A box can be filled in the time = \(\frac{2.4}{\frac{1}{5} }\)

                                                     = 2.4×5

                                                     = 12 seconds

Therefore, 12 seconds will be needed to fill the toffee box.