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Why Aptitude Time and Work is Required?

In this Aptitude section you can learn and practice Aptitude Questions with Answers based on "Time and Work" 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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Time and Work - Aptitude Questions and Answers

This is aptitude questions and answers section on Time and Work with explanation for various interview, competitive examinations and entrance tests. Latest Time and Work aptitude questions with answers.

Time and Work Online Test - Time and Work Quiz Details

Online Test Name Time and Work
Exam Type Multiple Choice Questions
Category Aptitude Quiz
Number of Questions 130

1. A and B complete a work in 6 days. A alone can do it in 10 days. If both together can do the work in how many days?
  • A. 3.75 days
  • B. 4 days
  • C. 5 days
  • D. 6 days
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Answer & Explanation

Answer: Option A

Explanation:

1/6 + 1/10 = 8/30 = 4/15

15/4 = 3.75 days

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2. A and B together can do a piece of work in 8 days. If A alone can do the same work in 12 days, then B alone can do the same work in?
  • A. 20 days
  • B. 16 days
  • C. 24 days
  • D. 28 days
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Answer & Explanation

Answer: Option C

Explanation:

B = 1/8 “ 1/2 = 1/24 => 24 days

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3. A can do a piece of work in 4 days. B can do it in 5 days. With the assistance of C they completed the work in 2 days. Find in how many days can C alone do it?
  • A. 10 days
  • B. 20 days
  • C. 5 days
  • D. 4 days
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Answer & Explanation

Answer: Option B

Explanation:

C = 1/2 - 1/4 - 1/5 = 1/20 => 20 days

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4. A and B can do a piece of work in 6 2/3 days and 5 days respectively. They work together for 2 days and then A leaves. In how many days after that B will complete the work alone.
  • A. 2 days
  • B. 1 ½ days
  • C. 3 days
  • D. 3 ½ days
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Answer & Explanation

Answer: Option B

Explanation:

3/20 * 2 + (2 + x)/5 = 1

x = 1 ½ days

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5. A can do a piece of work in 30 days. He works at it for 5 days and then B finishes it in 20 days. In what time can A and B together it?
  • A. 16 2/3 days
  • B. 13 1/3 days
  • C. 17 1/3 days
  • D. 16 1/2 days
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Answer & Explanation

Answer: Option B

Explanation:

5/30 + 20/x = 1

x = 24

1/30 + 1/24 = 3/40

40/3 = 13 1/3 days

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