Question

An old man goes for an evening walk in a park
and covers a distance of 30 meters an 20 seconds. If
he keeps walking at the way point the distance covered
by him in 5 min 10 second​

Answer 1

Answer:

50 minutes

Explanation:

Time taken to cover 20 km at speed 5 km/hr = 4 hours

∴ Fixed time = 4 hour - 40 minutes = 3 hour 20 min

Time taken to cover 20 km at the speed 8 km/hr = 20/8 = 2 hours 30 minutes

∴ Required time = 3 hours 20 minutes - 2 hr 30 min

=50 minutes

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