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Q:
A) 40 km | B) 30 km |
C) 20 km | D) 10 km |
Answer: C) 20 km
Explanation:
Explanation:
Average speed = , here a=25 b=4
= 2 x 25 x 4/(25+4) = 200/29 km/hr.
Distance covered in 5 hours 48 minutes
= Speed x time = (200/29)x (29/5) Distance covered in 5 hours 48 minutes = 40kms.
Distance of the post office from the village = (40/2) = 20 km.