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A s/w eng. returns from America. As he is fat he decided 2 have evening walk daily, He started at 3p.m.. He walks along the road at 4 km/hr for sometime. When he climbes a upward slope area at 3km/hr then downwards at the rate of 6km/hr. then back to the home thro the same road at 4 km/hr What is the distance he coverered in one way if he reaches back home at 9p.m.

Read Solution (Total 1)

12 kms.

Time taken is 6 hrs

If he covered x km on plane road and y kms on hilly road,
then
total distance = x+y
and
x/4 + y/3 +y/6+x/4 =6
or
6x+6y = 72
x+y = 12 kms.
13 years agoHelpfull: Yes(0) No(0)

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