The farmer moves in the field while watering in such a way that sum of distances between the farmer and each hand pump if always 26 meters. Also the distance between the hand pumps in 10.
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Answer:
Correct option is A)
It is given in the question, the man can travel 10 m in 40 seconds.
Total time of journey t=2×60+20=140 s
Time taken to go around the square field once t
′
=40 s
Thus number of times the farmer goes around the field n=
40
140
=3.5 times
So, the farmer reaches at point D finally.
Displacement of the farmer is equal to the distance between point A and D.
∴ Displacement S=
AB
2
+BC
2
=
(10)
2
+(10)
2
=14.14m
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