Question 29
If the calculated answer is not an integer, give the nearest integer. If the calculated answer has more than five digits, give its last five digits.
A man walks from his house to his farm and back in 3 hours along the same route. Going out, the route is flat and then uphill; coming back it is downhill and then flat. The flat portion is twice the length of the hilly portion. His constant speeds are: flat 4 km/h, uphill 3 km/h, downhill 6 km/h. Find his total daily walking distance in kilometres.

A man walks from his house to his farm and back in 3 hours along the same route. Going out, the route is flat and then uphill; coming back it is downhill and then flat. The flat portion is twice the length of the hilly portion. His constant speeds are: flat 4 km/h, uphill 3 km/h, downhill 6 km/h. Find his total daily walking distance in kilometres.
