The speed of a boat in still water is $15 \text{ km/h}$. It takes twice as much time to row upstream as to row downstream for the same distance. Find the speed of the stream.
Options:
- A: $3 \text{ km/h}$
- B: $4 \text{ km/h}$
- C: $5 \text{ km/h}$
- D: $6 \text{ km/h}$
Related Practice Questions:
- A sum of ₹4000 is invested at compound interest for 2 years at a rate of 10% per annum. What will be the total amount at the end of 2 years?
- At what rate of simple interest per annum will a sum of money double itself in 8 years?
- The difference between the compound interest and simple interest on a certain sum of money for 2 years at 5% per annum is ₹25. Find the sum.
- The study of living organism :
Loading Preview