Basic Maths and Reasoning MCQs (page 117 of 212)
Percentages, ratios, averages, profit and loss, speed and time, number series and simple logical reasoning, with the working shown for every answer.
4,221 questions. Select an option to check your answer, or open "Show answer". Showing 2321–2340.
- 2321.
6 workers can finish a job in 6 days. How many days will 3 workers take?
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Answer: C. 12 days
Total work = 6 × 6 = 36 worker-days. 36 ÷ 3 = 12 days.
- 2322.
10 workers can finish a job in 9 days. How many days will 5 workers take?
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Answer: B. 18 days
Total work = 10 × 9 = 90 worker-days. 90 ÷ 5 = 18 days.
- 2323.
30 workers can finish a job in 12 days. How many days will 4 workers take?
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Answer: D. 90 days
Total work = 30 × 12 = 360 worker-days. 360 ÷ 4 = 90 days.
- 2324.
20 workers can finish a job in 15 days. How many days will 6 workers take?
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Answer: B. 50 days
Total work = 20 × 15 = 300 worker-days. 300 ÷ 6 = 50 days.
- 2325.
20 workers can finish a job in 24 days. How many days will 6 workers take?
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Answer: C. 80 days
Total work = 20 × 24 = 480 worker-days. 480 ÷ 6 = 80 days.
- 2326.
8 workers can finish a job in 18 days. How many days will 24 workers take?
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Answer: C. 6 days
Total work = 8 × 18 = 144 worker-days. 144 ÷ 24 = 6 days.
- 2327.
24 workers can finish a job in 8 days. How many days will 6 workers take?
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Answer: D. 32 days
Total work = 24 × 8 = 192 worker-days. 192 ÷ 6 = 32 days.
- 2328.
30 workers can finish a job in 20 days. How many days will 24 workers take?
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Answer: D. 25 days
Total work = 30 × 20 = 600 worker-days. 600 ÷ 24 = 25 days.
- 2329.
6 workers can finish a job in 18 days. How many days will 36 workers take?
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Answer: A. 3 days
Total work = 6 × 18 = 108 worker-days. 108 ÷ 36 = 3 days.
- 2330.
10 workers can finish a job in 10 days. How many days will 2 workers take?
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Answer: C. 50 days
Total work = 10 × 10 = 100 worker-days. 100 ÷ 2 = 50 days.
- 2331.
6 workers can finish a job in 8 days. How many days will 24 workers take?
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Answer: B. 2 days
Total work = 6 × 8 = 48 worker-days. 48 ÷ 24 = 2 days.
- 2332.
16 workers can finish a job in 5 days. How many days will 4 workers take?
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Answer: C. 20 days
Total work = 16 × 5 = 80 worker-days. 80 ÷ 4 = 20 days.
- 2333.
8 workers can finish a job in 6 days. How many days will 24 workers take?
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Answer: A. 2 days
Total work = 8 × 6 = 48 worker-days. 48 ÷ 24 = 2 days.
- 2334.
6 workers can finish a job in 12 days. How many days will 3 workers take?
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Answer: C. 24 days
Total work = 6 × 12 = 72 worker-days. 72 ÷ 3 = 24 days.
- 2335.
5 workers can finish a job in 12 days. How many days will 20 workers take?
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Answer: B. 3 days
Total work = 5 × 12 = 60 worker-days. 60 ÷ 20 = 3 days.
- 2336.
18 workers can finish a job in 24 days. How many days will 36 workers take?
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Answer: C. 12 days
Total work = 18 × 24 = 432 worker-days. 432 ÷ 36 = 12 days.
- 2337.
6 workers can finish a job in 20 days. How many days will 5 workers take?
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Answer: D. 24 days
Total work = 6 × 20 = 120 worker-days. 120 ÷ 5 = 24 days.
- 2338.
20 workers can finish a job in 9 days. How many days will 60 workers take?
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Answer: A. 3 days
Total work = 20 × 9 = 180 worker-days. 180 ÷ 60 = 3 days.
- 2339.
12 workers can finish a job in 9 days. How many days will 36 workers take?
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Answer: B. 3 days
Total work = 12 × 9 = 108 worker-days. 108 ÷ 36 = 3 days.
- 2340.
20 workers can finish a job in 5 days. How many days will 5 workers take?
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Answer: D. 20 days
Total work = 20 × 5 = 100 worker-days. 100 ÷ 5 = 20 days.