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2 men and 5 women can do a work in 12 da...

2 men and 5 women can do a work in 12 days. 5 men and 2 women can do that work in 9 days. Only 3 women can finish the same work in-
2 पुरूष और 5 महिलाएं किसी काम को 12 दिनों में पूरा कर सकते हैं। 5 पुरूष और 2 महिलाएं उस काम को 9 दिलों में पूरा कर सकते हैं। केवल 3 महिलाएं उस काम को कितने दिन में पूरा कर सकती हैं?

A

36 days

B

21 days

C

30 days

D

42 days

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A and B together can complete some work in 36 days, B and C together can complete the same work in 60 days and A and C together can complete the same work in 45 days. In how many days, B alone can complete the same work? A और B मिलकर किसी काम को 36 दिनों में पूरा कर सकते हैं,B और C मिलकर उसी काम को 60 दिनों में पूरा कर सकते हैं और A और C मिलकर उसी काम को 45 दिनों में पूरा कर सकते हैं। कितने दिनों में, B अकेले उसी काम को पूरा कर सकता है?

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CHAMPION PUBLICATION-2011 TIER-II PAPER(23)-EXERCISE
  1. Let A and B work together.It takes time, A alone to do that work.It wi...

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  2. 240 men can finish a work in 20 days working 5 hours a day. To finish ...

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  3. 2 men and 5 women can do a work in 12 days. 5 men and 2 women can do t...

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  4. By selling an article at 3/4th of the marked price, there is a gain of...

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  5. A and B earn in the ratio 2: 1.They spend in the ratio 5: 3 and save i...

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  6. The ratio of the sum of two numbers and their difference is 5: 1. The ...

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  7. Successive discounts of 10%, 20% and 50% will be equivalent to a singl...

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  8. A retailer offers the following discount schemes for buyers on an arti...

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  9. A mixture contains 80% acid and rest water. Part of the mixture that s...

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  10. An employer reduces the number of his employees in the ration 9:8 and ...

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  11. The batting average for 40 innings of a cricket. player is 50 runs. Hi...

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  12. A and B are two alloys of gold and copper prepared by mixing metals in...

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  13. In a laboratory, two bottles contain mixture of acid and water in the...

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  14. The average the three numbers is 154. The first number is twice the se...

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  15. The average salary of all the staff in an office of a corporate house ...

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  16. The average marks of 40 students in an English exam is 72. Later it is...

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  17. Of three numbers, the second is thrice the first and the third number ...

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  18. A car covers 1/5 of the distance from A to B at the speed at 8 km/hr, ...

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  19. A jar contains 10 red marbles and 30 green ones. How many red marbles ...

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  20. If a number multiplied by 25% of itself gives a number which is 200% m...

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