Question : A boat travels 32 km downstream in 4 hours and 24 km upstream in 6 hours. What is the speed (in km/hr) of a boat in still water?
Option 1: 2
Option 2: 4
Option 3: 6
Option 4: 8
New: SSC MTS Tier 1 Answer key 2024 out
Don't Miss: Month-wise Current Affairs | Upcoming Government Exams
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 6
Solution : Let $x$ km/hr be the speed of the boat in still water and $y$ km/hr be the speed of the current. The speed of the boat downstream = $(x+y)$ km/hr The speed of the boat in upstream = $(x–y)$ km/hr The distance travelled upstream = $24$ km A boat travels 32 km downstream in 4 hours and 24 km upstream in 6 hours. $\text{Speed}=\frac{\text{Distance}}{{\text{Time}}}$ $6(x-y)=24⇒x-y=4$ $4(x+y)=32⇒x+y=8$ Solving the above equations, we get, $2x=12⇒x=6$ km/hr Hence, the correct answer is 6.
Answer Key | Cutoff | Selection Process | Preparation Tips | Eligibility | Application | Exam Pattern
Question : A boat can row 24 km in 6 hours in still water It can row 56 km downstream and 30 km upstream in 38 hours. What is the speed of the stream?
Question : A boat takes a total of 2 hours to cover 9 km downstream and return, given that the speed of the stream is 6 km/hr. What is the speed of the boat in still water?
Question : The speed of a boat in still water is 17 km/hr and the speed of a stream is 11 km/hr. Find the difference between the upstream speed and the downstream speed of the boat.
Question : The speed of a boat in still water is 44 km/hr and the speed of a stream is 26 km/hr. Find the upstream speed of the boat.
Question : The speed of a boat upstream is 8 km/hr and the speed of a stream is 4 km/hr. The boat covers a distance of $x$ km in upstream and $x$ km in downstream. If the total time taken by the boat is 9 hours, then what is the value of $x$?
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile