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Home › State PSC › General Aptitude - Quantitative

General Aptitude - Quantitative — State PSC Questions & Practice

Practise 1,838 General Aptitude - Quantitative questions from State PSC for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on General Aptitude - Quantitative — with answers

Try each question first, then open the answer. Explanations are included.

1. A can complete a task in 36 days and B can complete the same task in 18 days. In how many days will A and B together complete the task?

  1. A22
  2. B17
  3. C12
  4. D16
Show answer

Answer: C

Combined time = (A x B)/(A+B) = (36 x 18)/(36+18) = 12 days.

2. A can complete a task in 4 days and B can complete the same task in 5 days. In how many days will A and B together complete the task?

  1. A4.22
  2. B17.22
  3. C2.22
  4. D1.22
Show answer

Answer: C

Combined time = (A x B)/(A+B) = (4 x 5)/(4+5) = 2.22 days.

3. A can complete a task in 21 days and B can complete the same task in 9 days. In how many days will A and B together complete the task?

  1. A3.3
  2. B26.3
  3. C6.3
  4. D11.3
Show answer

Answer: C

Combined time = (A x B)/(A+B) = (21 x 9)/(21+9) = 6.3 days.

4. A can complete a task in 40 days and B can complete the same task in 25 days. In how many days will A and B together complete the task?

  1. A15.38
  2. B11.38
  3. C25.38
  4. D12.38
Show answer

Answer: A

Combined time = (A x B)/(A+B) = (40 x 25)/(40+25) = 15.38 days.

5. A can complete a task in 5 days and B can complete the same task in 25 days. In how many days will A and B together complete the task?

  1. A12.17
  2. B6.17
  3. C5.17
  4. D4.17
Show answer

Answer: D

Combined time = (A x B)/(A+B) = (5 x 25)/(5+25) = 4.17 days.

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