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Why Aptitude Boats and Streams is Required?

In this Aptitude section you can learn and practice Aptitude Questions with Answers based on "Boats and Streams" to improve your skills in order to face written test by IT companies, interview and various entrance tests like Bank Exams, Railway Exams,ICET, GATE, CAT, GRE, MAT, etc.

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Here you can find both objective type and Multiple Choice Aptitude Boats and Streams questions and answers for interview and entrance examination. True or false type questions are also provided here. Practice these bits well to get success in interviews or entrance tests

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Boats and Streams - Aptitude Questions and Answers

Boats and Streams aptitude questions are a popular category of questions that are asked in various competitive exams, entrance tests, and interviews. The two fundamental concepts in the Boats and Streams Aptitude Quiz are upstream and downstream. So we insist the people take this Boats and Streams aptitude online test to improve their knowledge and crack the exams very easily.

Boats and Streams Formulae

1. Speed downstream = (u + v) km/hr.
2. Speed upstream = (u - v) km/hr.
3. Speed in still water = 1(a + b)/2 km/hr.
4. Rate of stream = 1(a - b)/2 km/hr.

1. A person can swim in still water at 4 km/h. If the speed of water 2 km/h, how many hours will the man take to swim back against the current for 6km?
  • A. 3
  • B. 4
  • C. 4 (1/2)
  • D. Insufficient data
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Answer & Explanation

Answer: Option A

Explanation:

M = 4

S = 2

US =  4 - 2 = 2

D = 6

T = 6/2 = 3

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2. A boat goes 100 km downstream in 10 hours, and 75 m upstream in 15 hours. The speed of the stream is?
  • A. 7 km/h
  • B. 5 km/h
  • C. 3 km/h
  • D. 2 (1/2) km/h
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Answer & Explanation

Answer: Option D

Explanation:

100 --- 10             DS = 10

? ----  1

75 ---- 15         US = 5

? ----- 1           S = (10 - 5)/2

                                   = 2 2 ½ kmph

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3. A man can row his boat with the stream at 6 km/h and against the stream in 4 km/h. The man's rate is?
  • A. 1 kmph
  • B. 5 kmph
  • C. 8 kmph
  • D. 3 kmph
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Answer & Explanation

Answer: Option A

Explanation:

DS = 6

US = 4

   S = ?

S = (6 - 4)/2 = 1 kmph

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4. A man can swim in still water at 4.5 km/h, but takes twice as long to swim upstream than downstream. The speed of the stream is?
  • A. 3
  • B. 7.5
  • C. 2.25
  • D. 1.5
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Answer & Explanation

Answer: Option D

Explanation:

M = 4.5

S = x

DS = 4.5 + x

US = 4.5 + x

4.5 + x = (4.5 - x)2

4.5 + x = 9 -2x

3x = 4.5

x = 1.5

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5. A man can row with a speed of 15 kmph in still water. If the stream flows at 5 kmph, then the speed in downstream is?
  • A. 10 kmph
  • B. 5 kmph
  • C. 20 kmph
  • D. 22 kmph
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Answer & Explanation

Answer: Option C

Explanation:

M = 15

S = 5

DS = 15 + 5 = 20

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