Q6 of 65 Page 4

Let us construct the quadratic equations in one variable from the following statements.

If the velocity of the stream is 2kms/hr, then the time taken by Ratanmajhi to cover 2 kms in downstream and upstream is 10 hours.

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


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