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A and B can do a job in 10 days and 5 da...

A and B can do a job in 10 days and 5 days, respectively. They worked together for two days, after which B was replaced by C and the work was finished in the next three days. How long will C alone take to finish 40% of the job?
A और B क्रमशः10 दिनों और 5 दिनों में एक कार्य कर सकते हैं। उन्होंने दो दिनों तक एक साथ कार्य किया, जिसके बाद B को C से बदल दिया गया और अगले तीन दिनों में कार्य समाप्त हो गया। C को अकेले 40% कार्य पूरा करने में कितना समय लगेगा ?

A

18 days

B

12 days

C

15 days

D

10 days

Text Solution

Verified by Experts

The correct Answer is:
B
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A and B can do a job in 15 days and 10 days, respectively. They began the work together but A leaves after some days and B finished the remaining job in 5 days. After how many days did A leave?

Two teachers A and B can complete an academic work in 10 days and 15 days respectively.They started the work together, but A left after 5 days and another teacher C joined, who alone can complete the work in 60 days. In how many days the work got completed? दो शिक्षक A और B क्रमशः 10 दिनों और 15 दिनों में एक शैक्षणिक कार्य पूरा कर सकते हैं। उन्होंने एक साथ काम शुरू किया, लेकिन A 5 दिनों के बाद छोड़ दिया और एक अन्य शिक्षक C इस कार्य में शामिल हो गया, जो अकेले 60 दिनों में इस काम पूरा कर सकता है। यह कार्य कितने दिनों में पूरा होगा?

Working together, A and B can complete a work in 12 days. They work together for 9 days after which B leaves. If A finishes the remaining work in 5 days, then the number of days that B alone would take to complete the work is: एक साथ काम करते हुए, A और B एक कार्य को 12 दिनों में पूरा कर सकते हैं। वे 9 दिनों तक साथ में कार्य करते है और उसके बाद B उस कार्य को छोड़ देता है। यदि A शेष कार्य को 5 दिनों में पूरा करता है, तो B को कार्य पूरा करने में कितने दिन लगेंगे?

P and Q can finish a work in 10 days and 5 days, respectively. Q worked for 2 days and left the job. In how many days can P alone finish the remaining work? P और Qक्रमशः 10 दिनों और 5 दिनों में एक कार्य खत्म कर सकते हैं। Q ने 2 दिन कार्य किया और नौकरी छोड़ दी। P शेष कार्य को कितने दिनों में पूरा कर सकता है?

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GAGAN PRATAP -TIME & WORK-TIME & WORK (SHEET-2)
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  2. A and B can do a job in 10 days and 5 days, respectively. They worked ...

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  3. To do a certain work, the ratio of efficiency of A to that of B is 3:7...

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  4. To do a certain work, the ratio of the efficiencies of A and B is 7 : ...

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  5. The ratio of the efficiencies of A, B and C is 4 : 5 : 3. Working toge...

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  6. To complete a certain task, X is 30% more efficient than Y, and Z is 2...

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  7. The ratio of the efficiencies of A, B, C is 7:5:4. Working togehter, t...

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  8. A can do a piece of work in 15 days, B is 25% more efficient than A an...

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  9. Anmol is thrice as good a workman as Vinay and therefore is able to fi...

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  10. A can do as much work as B and C together can do. A and B can together...

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  11. Working together, printer A and printer B would finish a task in 24 mi...

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  12. P, Q and R three typist working simultaneously can type 456 pages in 6...

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  13. A and B can do a piece of work in 36 days. B and C can do the same wo...

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  14. A and B can do a piece of work in 18 days. B and C together can do it ...

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  15. A takes three times as long as B and C together to do a job. B takes f...

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  16. A can work 7/9 as fast as B and C together. A and B together can work ...

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  17. A, B and C together can complete a work in 40 days. (A+B) can complete...

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  18. A and B. working together, can complete a work in 16 days, C and A tog...

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  19. Ram completed 60% of a task in 15 days and then takes the help of Rahi...

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  20. B and C together takes 33(1)/(3)% more time as compared to the time ta...

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