Answer:
12 seconds will be needed to fill the toffee box.
Step-by-step explanation:
Joey takes the time to fill [tex]\frac{1}{5}[/tex] of a box = [tex]\frac{1}{25}[/tex] of a minute.
[tex]\frac{1}{25}[/tex] of a minute = [tex]\frac{1}{25}\times 60[/tex] seconds
= 2.4 seconds
Now we will use unitary method to get the time to fill a toffee box.
∵ [tex]\frac{1}{5}[/tex] box is filled in the duration = 2.4 seconds
∴ A box can be filled in the time = [tex]\frac{2.4}{\frac{1}{5} }[/tex]
= 2.4×5
= 12 seconds
Therefore, 12 seconds will be needed to fill the toffee box.