Answer:
1/5 minutes
Step-by-step explanation:
✓Let the X= a bottle of water
✓Let y= number of minutes it will takes to fill a bottle
We can express the given statement as
1/3 X = 1/15 mins
X= ymins
If we cross multiply the two expression above we have
X/15 mins= X/3 mins * ymins
15 mins * X * y mins= 3X
Divide both sides by X
15 mins * y= 3
Make "y" the subject of the formula
y= 3/15 mins
Divide both numerator and denominator by factor of 3.
y= 1/5 minutes
Hence, the time it will take him to fill the bottle is 1/5 minutes
