Live Practice Test

SSC CGL Time and Work Practice Test 4

15 fresh SSC CGL time and work questions on work rates, efficiency, pipes, and manpower adjustments.

Timer-based practiceDetailed answer reviewMobile-friendly flow
SSC CGL Sponsor
High Intent Competitive Exam Traffic

Leaderboard slot above the practice session for revision tools, test series, books, and career products.

SSC CGL Practice Session

SSC CGL Time and Work Practice Test 4

15 fresh SSC CGL time and work questions on work rates, efficiency, pipes, and manpower adjustments.

Questions
15
Marking
+2 correct, -0.5 wrong
Format
15-question ad-supported session
Preview all 15 questions in SSC CGL Time and Work Practice Test 4 (no login required)
  1. Combined Work

    1. A can do a job in 12 days and B in 18 days. Together they finish it in:

    • A. 6 days
    • B. 7.2 days (Correct)
    • C. 8 days
    • D. 9 days

    Explanation: Combined rate = 1/12 + 1/18 = 5/36, so time = 36/5 days.

  2. Efficiency

    2. If A completes 1/20 of a work in one day, A alone will take:

    • A. 10 days
    • B. 15 days
    • C. 20 days (Correct)
    • D. 25 days

    Explanation: Total time is the reciprocal of one-day work.

  3. Man-days

    3. 16 workers complete a job in 15 days. 20 workers will complete it in:

    • A. 10 days
    • B. 12 days (Correct)
    • C. 14 days
    • D. 16 days

    Explanation: Workers x days remains constant, so 16 x 15 / 20 = 12.

  4. Pipes

    4. Two taps can fill a tank in 8 hours and 24 hours. Working together, they will fill it in:

    • A. 5 hours
    • B. 6 hours (Correct)
    • C. 7 hours
    • D. 8 hours

    Explanation: Combined rate = 1/8 + 1/24 = 1/6.

  5. Efficiency Ratio

    5. If A is twice as efficient as B, the efficiency ratio A:B is:

    • A. 1:2
    • B. 2:1 (Correct)
    • C. 2:3
    • D. 3:2

    Explanation: Twice as efficient means the ratio is 2:1.

  6. Alternate Days

    6. A can finish a work in 8 days and B in 12 days. Working on alternate days starting with A, how much work is completed in the first 2 days?

    • A. 1/6
    • B. 5/24 (Correct)
    • C. 1/3
    • D. 7/24

    Explanation: In one cycle, A does 1/8 and B does 1/12, so total = 5/24.

  7. Work Sharing

    7. A, B, and C can finish a work in 15, 20, and 30 days. Together they finish it in:

    • A. 5 days
    • B. 6 days (Correct)
    • C. 7 days
    • D. 8 days

    Explanation: Combined rate = 1/15 + 1/20 + 1/30 = 1/6.

  8. Pipes and Waste

    8. A pipe fills a tank in 4 hours and a waste pipe empties it in 12 hours. If both are opened, the tank fills in:

    • A. 4 hours
    • B. 5 hours
    • C. 6 hours (Correct)
    • D. 8 hours

    Explanation: Net rate = 1/4 - 1/12 = 1/6.

  9. Efficiency

    9. If B takes 30 days and A is 50% more efficient than B, A takes:

    • A. 18 days
    • B. 20 days (Correct)
    • C. 22 days
    • D. 24 days

    Explanation: A's efficiency is 3:2, so time ratio is 2:3. A takes 20 days.

  10. Part Work

    10. A can do a work in 30 days. After 10 days, B joins and they complete the rest in 10 more days. B alone can do the work in:

    • A. 15 days
    • B. 20 days
    • C. 25 days
    • D. 30 days (Correct)

    Explanation: A does 1/3 in 10 days. Remaining 2/3 is done in 10 days, so A+B = 1/15. Since A = 1/30, B = 1/30.

  11. Group Work

    11. 18 labourers finish a work in 10 days. 12 labourers will finish it in:

    • A. 12 days
    • B. 14 days
    • C. 15 days (Correct)
    • D. 18 days

    Explanation: 18 x 10 / 12 = 15.

  12. Pipes

    12. A tap fills 1/5 of a tank in one hour. It will fill the tank in:

    • A. 4 hours
    • B. 5 hours (Correct)
    • C. 6 hours
    • D. 10 hours

    Explanation: Reciprocal of one-hour work gives total time.

  13. Combined Work

    13. A and B together complete a work in 4 days. If A alone takes 12 days, B alone takes:

    • A. 4 days
    • B. 5 days
    • C. 6 days (Correct)
    • D. 7 days

    Explanation: 1/B = 1/4 - 1/12 = 1/6.

  14. Women and Men

    14. 10 men can finish a work in the same time as 15 women. Efficiency ratio of one man to one woman is:

    • A. 2:3
    • B. 3:2 (Correct)
    • C. 4:3
    • D. 5:3

    Explanation: If 10 men = 15 women, then one man = 15/10 women = 3/2 women.

  15. Efficiency

    15. If A does 20% more work than B in the same time, A:B efficiency ratio is:

    • A. 5:4
    • B. 6:5 (Correct)
    • C. 4:3
    • D. 3:2

    Explanation: 120:100 simplifies to 6:5.