Time and Work problems
- 1. A field can be reaped by 12 men or 18 women in 14 days. In how many days can 8 men and 16 women reap it?
Options- A. 26 days
- B. 24 days
- C. 9 days
- D. 8 days Also asked in: Bank Exams
Correct Answer: 9 days
Explanation:
12 men or 18 women can complete in 14 days
8 men and 16 women can complete in how many days
12men = 18 women (Comparing efficiencies)
1men = 18/12 = 1.5 women
8 men and 16 women = 12women + 16 women = 28 women
18 women completes in 14 days
1 woman completes in 14*18 days
28 women completes in (14*18)/28 days = 9 days
- 2. A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?
Options- A. 16/3
- B. 15/4
- C. 17/3
- D. 19/4 Also asked in: Bank Exams
Correct Answer: 16/3
- 3. A, B and C can do a job working alone in 12, 16 and 24 days respectively. In how many days they can do the job if they worked together?
Options- A. 16/3
- B. 15/4
- C. 17/3
- D. 19/4 Also asked in: Bank Exams
Correct Answer: 16/3
- 4. A can do a work in 15 days and B in 9 days. If they work on it together for 5 days, then what fraction of work is left?
Options- A. 1/6
- B. 3/7
- C. 1/3
- D. 1/9 Also asked in: Bank Exams
Correct Answer: 1/9
- 5. A can do a work in 20 days and B in 50 days. If they work on it together for 5 days, then what fraction of work is left?
Options- A. 13/20
- B. 1/3
- C. 1/6
- D. 2/9 Also asked in: Bank Exams
Correct Answer: 13/20
- 6. Raja and Kundan together can build a wall in 20 days, Kundan and Mahesh build the same wall in 30 days and Mahesh and Raja can build the same wall in 24 days. In how many days can all the three complete the same wall while working together?
Options- A. 18
- B. 16
- C. 20
- D. 14 Also asked in: Bank Exams
Correct Answer: 16
- 7. A can do a work in 36 days and B in 12 days. If they work on it together, then in how many days will they be able to do the work?
Options- A. 8
- B. 6
- C. 10
- D. 9 Also asked in: Bank Exams
Correct Answer: 9
- 8. P can complete a work in 15 days and Q in 24 days. They began the work together, but Q left the work 2 days before its completion. In how manydays, was the work completed?
Options- A. 12
- B. 10
- C. 9
- D. 11 Also asked in: Bank Exams
Correct Answer: 10
- 9. Badki can bake 45 cakes in 9 hours, Badki and Chutki together can bake 80 cakes in 10 hours. How many cakes Chutki can bake in 40 hours?
Options- A. 125
- B. 10
- C. 120
- D. 20 Also asked in: Bank Exams, CAT
Correct Answer: 120
- 10. Prabodh has done 1/2 of a job in 30 days, Sapan completes the rest of the job in 45 days. In how many days can they together do the job?
Options- A. 18 days
- B. 48 days
- C. 27 days
- D. 36 days Also asked in: Bank Exams
Correct Answer: 36 days
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