Question

A boatman can row 3 km against the stream in 20 minutes and return in 18 minutes. Find the rate
of current ?
A) 1/3 kmph
B) 2/3 kmph C) 1/4 kmph D) 1/2kmph​

Answer 1

Answer:

1. urg4h4yryebdbfhrhgyehehgevrv4behevehgrgeheh4hh4hrgrg2feberhrbe4h3g4g2

Answer 2

Answer:

D) 1/2 kmph

Step-by-step explanation:

Speed in upstream = Distance / Time = 3 x 60/20 = 9 km/hr.

Speed in downstream = 3 x 60/18 = 10 km/hr

Rate of current = (10-9)/2 = 1/2 km/