Question

The path from P to Q is 3 km uphill, then 8 km on level ground and then 6 km downhill. A man can walk 1 km/hour uphill, 4 km/hour on level path and 6 km/hour downhill. How long will he take to go from P to Q and back ?​

Answer 1

Answer:

Step-by-step explanation:

for 1 way:

1. up  hill 3X1km/hr            
2. on level grnd 2 X 4km/hr                
3. 1 X 4km/h down hill

Hence 3+2+1 =6 hrs 1 way

Back :

1. uphill  4 X 1km/hr
2.           2 hrs on level grnd
3.          45 minutes down hill (3/4 of an hour)

TOTAL : 12 hours 45 minutes

Answer 2

Answer:

from P to Q it will take 3 hours

and from uphill to downhill it will take 6 hours

hope that it will help you