Answer:
25%
Explanation:
We need to first convert 3/5th to percentage so we are only dealing with percentage.
3/5 doing division would give us 0.6
Multiply that by 100, we get
0.6 * 100 = 60%
Thus, now we can say:
Walking = 15%
Driving = 60%
The remaining time is cycling. How much?
15 % + 60 % + cycling = 100%
75% + cycling = 100%
Cycling = 100 - 75 = 25%