Question : A boat moves downstream at a rate of 8 km/hr and upstream at 4 km/hr. The speed of the boat in still water is:
Option 1: 4.5 km/hr
Option 2: 5 km/hr
Option 3: 6 km/hr
Option 4: 6.4 km/hr
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
New: Unlock 10% OFF on PTE Academic. Use Code: 'C360SPL10'
Correct Answer: 6 km/hr
Solution : Given: A boat moves downstream at a rate of 8 km/hr and upstream at 4 km/hr. We know, the speed of the boat in still water $=\frac{\text{(Downstream speed + Upstream speed)}}{2}=\frac{(8+4)}{2}=\frac{12}{2}$ = 6 km/hr Hence, the correct answer is 6 km/hr.
Candidates can download this ebook to know all about SSC CGL.
Admit Card | Eligibility | Application | Selection Process | Preparation Tips | Result | Answer Key
Question : A boat moves downstream at the rate of 1 km in $7\frac{1}{2}$ minutes and upstream at the rate of 5 km an hour. What is the speed of the boat in the still water?
Question : A boat moves 25 km upstream and 39 km downstream in 8 hours. It travels 35 km upstream and 52 km downstream in 11 hours. What is the speed of the stream if it travels at a uniform speed?
Question : A boat goes 20 km upstream and 44 km downstream in 8 hours. In 5 hours, it goes 15 km upstream and 22 km downstream. Determine the speed of the boat in still water.
Question : A boat goes 4 km upstream and 4 km downstream in an hour. The same boat goes 5 km downstream and 3 km upstream in 55 minutes. What is the speed (in km/hr) of the boat in still water?
Question : Direction: A boat can travel at a speed of 30 km/hr in still water. If the speed of the stream is 6 km/hr. Find the time taken by the boat to go 108 km downstream.
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile