Question

If the velocity of the stream is 2km/hour, then the time taken by ratanmajhi to cover 21kms in downstream and upstream is 10 hours

Answer 1

Answer:

Let the velocity of boat be v.

Given , velocity of the stream = 2km/h

velocity in downstream = v + 2

velocity in upstream = v-2

total time = time taken during upstream + time taken during downstream

As,

According to question,

Hence the required quadratic equation is

Answer 2

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