General Instructions
- The clock is set at the server. The countdown timer at the top of the screen shows the time remaining. When it reaches zero the test ends by itself — you do not have to submit.
- The Question Palette shows the status of every question using these symbols:
- You have not visited the question yet.
- You have not answered the question.
- You have answered the question.
- You have NOT answered, but have marked it for review.
- You have answered and also marked it for review.
- To answer a question: choose one of the four options, then press Save & Next. To change an answer, select a different option and save again. To remove it, press Clear.
- Your answer is saved only when you press Save & Next or Mark for Review & Next. If you jump to another question from the palette without saving, the answer to the question you were on is not kept. This is how the real exam behaves.
- Sections appear on the bar above the question. You may move between sections at any time, and after the last question of a section you are taken to the first question of the next one.
- Only questions that are saved, or marked for review after answering, are evaluated.
Quant – Boat & Stream – Set 5
Read the following instructions carefully
- The test contains 10 questions.
- Each question has 4 options, of which only one is correct.
- You have to finish the test in 8 minutes.
- You are awarded 1 mark for each correct answer, and 0.25 marks are deducted for each wrong answer.
- There is no negative marking for questions you do not attempt.
- You may pause the test at any time and resume where you left off.
- Your marks, the correct answers and an explanation for every question are shown as soon as you submit.
- You can take this test as many times as you like. A fresh set is drawn each time you reload the page.
Test paused
The clock has stopped. Your answers are safe.
Question Paper
Your paper has been submitted
Your answers are saved on our server. Marks are not shown here — results are published on our Telegram channel on .
Review this set's questions and answers (opens after you submit the test)
This free practice set from AndamanJobs has 10 questions to be solved in 8 minutes. Every question is listed below with four options. Open Show answer and explanation under a question to see the correct option and why it is correct. Try the timed test above first, then use this list to revise the questions you got wrong.
- A man rows 12 km upstream in 4 hours and 20 km downstream in the same time. What is his speed in still water?
- A. 1 km/h
- B. 4 km/h
- C. 6 km/h
- D. 5 km/h
Show answer and explanation
Answer: B. 4 km/h
Upstream speed = 12/4 = 3 km/h and downstream = 20/4 = 5 km/h. Still water speed = (3 + 5)/2 = 4 km/h.
- A boat's speed in still water is 12 km/h and the stream flows at 2 km/h. It goes to a place and comes back in 6 hours. How far is the place?
- A. 41 km
- B. 39 km
- C. 35 km
- D. 33 km
Show answer and explanation
Answer: C. 35 km
D/(12+2) + D/(12-2) = 6. This gives D × 24/140 = 6, so D = 35 km.
- A swimmer's speed in still water is 15 km/h and the river flows at 6 km/h. How many minutes will he take to swim 60 km against the current?
- A. 430 minutes
- B. 380 minutes
- C. 400 minutes
- D. 390 minutes
Show answer and explanation
Answer: C. 400 minutes
Upstream speed = 15 - 6 = 9 km/h. Time = 60/9 hours = 6 2/3 × 60 = 400 minutes.
- A boat goes at 30 km/h in still water and the stream flows at 6 km/h. How long will it take to go 120 km upstream?
- A. 5 hours
- B. 2 hours
- C. 4 hours
- D. 8 hours
Show answer and explanation
Answer: A. 5 hours
Upstream speed = 30 - 6 = 24 km/h. Time = 120/24 = 5 hours.
- A boat's downstream speed is 17 km/h and its upstream speed is 9 km/h. What is the speed of the boat in still water?
- A. 14 km/h
- B. 13 km/h
- C. 10 km/h
- D. 16 km/h
Show answer and explanation
Answer: B. 13 km/h
Speed in still water = (downstream + upstream)/2 = (17 + 9)/2 = 13 km/h.
- A boat takes 4 hours to go 24 km downstream and 6 hours to return the same distance upstream. What is the speed of the stream?
- A. 3 km/h
- B. 1 km/h
- C. 2 km/h
- D. 8 km/h
Show answer and explanation
Answer: B. 1 km/h
Downstream speed = 24/4 = 6 km/h and upstream = 24/6 = 4 km/h. Stream = (6 - 4)/2 = 1 km/h.
- A boat takes 4 hours to go downstream and 5 hours to cover the same distance upstream. If the stream flows at 2 km/h, find the speed of the boat in still water.
- A. 18 km/h
- B. 14 km/h
- C. 20 km/h
- D. 16 km/h
Show answer and explanation
Answer: A. 18 km/h
Same distance: (b + 2) × 4 = (b - 2) × 5. This gives b = 2 × (4 + 5)/(5 - 4) = 18 km/h.
- A swimmer's speed in still water is 24 km/h and the river flows at 6 km/h. How many minutes will he take to swim 60 km against the current?
- A. 200 minutes
- B. 180 minutes
- C. 170 minutes
- D. 220 minutes
Show answer and explanation
Answer: A. 200 minutes
Upstream speed = 24 - 6 = 18 km/h. Time = 60/18 hours = 3 1/3 × 60 = 200 minutes.
- A boat goes at 12 km/h in still water and the stream flows at 3 km/h. How long will it take to go 60 km downstream?
- A. 2 hours
- B. 5 hours
- C. 4 hours
- D. 6 hours
Show answer and explanation
Answer: C. 4 hours
Downstream speed = 12 + 3 = 15 km/h. Time = 60/15 = 4 hours.
- A boat's downstream speed is 12 km/h and its upstream speed is 8 km/h. What is the speed of the stream?
- A. 5 km/h
- B. 3 km/h
- C. 4 km/h
- D. 2 km/h
Show answer and explanation
Answer: D. 2 km/h
Speed of stream = (downstream - upstream)/2 = (12 - 8)/2 = 2 km/h.