Discussion
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- Question
A, B and C can do a job working alone in 50, 75 and 20 days respectively. They all work together for 4 days, then C quits. How many days will A and B take to finish the rest of the job?
Options- A. 20
- B. 30
- C. 18
- D. 24
- Correct Answer
- 20
- 1. Working together A and B can do a job in 40 days, B and C in 36 days and all three together in 24 days. In how many days can B alone do the job?
Options- A. 60
- B. 90
- C. 72
- D. 120 Discuss
- 2. Abhinav is 2 times as good a workman as Balwant and therefore is able to finish a job in 36 days less than Balwant. Working together, they can do it in
Options- A. 12 days
- B. 6 days
- C. 18 days
- D. 24 days Discuss
- 3. Parimal has done 1/4th of a job in 10 days, Salim completes the rest of the job in 20 days. In how many days can they together do the job?
Options- A. 8 days
- B. 24 days
- C. 12 days
- D. 16 days Discuss
- 4. A does 50% of a work in 12 days. He then calls in B and they together finish the remaining work in 8 days. How long B alone would take to complete the whole work?
Options- A. 12 days
- B. 24 days
- C. 36 days
- D. 48 days Discuss
- 5. Sister can bake 50 cakes in 25 hours, Sister and Mummy together can bake 75 cakes in 15 hours. How many cakes Mummy can bake in 15 hours?
Options- A. 25
- B. 45
- C. 20
- D. 10 Discuss
- 6. A can do 50% of the job in 16 days, B can do 1/4th of the job in 24 days. In how many days can they do 3/4th of the job working together?
Options- A. 24
- B. 9
- C. 21
- D. 18 Discuss
- 7. A and B can together complete a task in 18 hours. After 6 hours A leaves. B takes 36 hours to finish rest of the task. How many hours would A have taken to do the task if he worked alone?
Options- A. 54
- B. 45
- C. 21
- D. 27 Discuss
- 8. The profit earned by selling an article for Rs 900 is double the loss incurred when the same article is sold for Rs.490. At what price should the article be sold to make 25% profit?
Options- A. 715
- B. 469
- C. 400
- D. 750 Discuss
- 9. The difference between Simple Interest and True Discount on a certain sum of money for 6 months at 1212 % per annum is Rs 25. Find the sum.
Options- A. Rs.6800
- B. Rs.6500
- C. Rs.6000
- D. Rs.6200 Discuss
- 10. A man purchased a cow for Rs. 3000 and sold it the same day for Rs. 3600, allowing the buyer a credit of 2 years. If the rate of interest be 10% per annum, then the man has a gain of:
Options- A. 0%
- B. 5%
- C. 7.5%
- D. 10% Discuss
Time and Work problems
Search Results
Correct Answer: 90
Correct Answer: 24 days
Correct Answer: 16 days
Correct Answer: 48 days
Correct Answer: 45
Correct Answer: 18
Correct Answer: 27
Correct Answer: 750
Explanation:
Let C.P be Rs. x
900 - x = 2(x - 450) => x = Rs.600
C.P = 600 gain required is 25%
S.P = [(100+25) x 600] / 100 = Rs.750
Correct Answer: Rs.6800
Explanation:
Correct Answer: 0%
Explanation:
C.P = Rs.3000
S.P =Rs. [3600 x 10] / [100+(10 x 2)] = Rs.3000
Gain =0%
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