If x is the speed of boat in still water, y is the speed of stream, d is the distance and t is the time taken, then
Match List I with List II
| List I | List II | ||
| A. | Time taken to go upstream | I. | x |
| B. | Distance travelled downstream in time t | II. | $\frac{2dx}{x^2-y^2}$ |
| C. | Average speed in going d km to and fro | III. | $\frac{d}{x-y}$ |
| D. | Total time taken to go d km downstream and coming back | IV. | $(x+y)t$ |
Choose the correct answer from the options given below :
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → A-III, B-IV, C-I, D-II
| List I | List II | ||
| A. | Time taken to go upstream | III. | $\frac{d}{x-y}$ |
| B. | Distance travelled downstream in time t | IV. | $(x+y)t$ |
| C. | Average speed in going d km to and fro | I. | $x$ |
| D. | Total time taken to go d km downstream and coming back | II. | $\frac{2dx}{x^2-y^2}$ |