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A group of men deaded to do a job in 4 d...

A group of men deaded to do a job in 4 days. But since 20 men dropped out every day, the job completed at the end of the 7th day. How many men were there at the beginning?

A

240

B

140

C

280

D

150

Text Solution

Verified by Experts

The correct Answer is:
B
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ARIHANT SSC-TIME AND WORK-EXERCISE(LEVEL 2)
  1. A group of workers was put on a job. From the second day onwards, one ...

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  2. Two workers undertake to do a job. The second-worker started working 2...

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  3. A group of men deaded to do a job in 4 days. But since 20 men dropped ...

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  4. Brahma, Vishnu and Mahesh are three friends with different productivit...

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  5. Milinda takes 8 1/3 hours more when she works alone in comparison of w...

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  6. Pascal and Rascal are two workers. Working together they can complete ...

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  7. Boston, Churchill and David are three workers, employed by a contracto...

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  8. There are three boats B1, B2 and B3 working together they carry 60 peo...

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  9. Three men and 5 women together can finish a job in 3 days. Working on ...

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  10. Henry and Ford are two different persons, but when they work together,...

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  11. Anne, Benne and Cenne are three friends. Anne and Benne are twins. Ben...

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  12. Three typists A, B and C working together 8 hours per a can type 900 p...

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  13. Four pipe A, B, C and D can fill a cistern in 20, 25, 40 and 50 hours ...

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  14. Four pipe A, B, C and D can fill a cistern in 20, 25, 40 and 50 hours ...

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  15. A tank is connected with four pipes A, B, C and D of which two are fil...

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  16. Two pipes A and B can fill a tank in 24 hours and (120)/7 hours respec...

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  17. Pipe A can fill a tank in 12 hours and pipe B can fill it in 15 hours,...

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  18. A tank has an inlet and outlet pipe. The inlet pipe fills the tank com...

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  19. A tank has an inlet and outlet pipe. The inlet pipe fills the tank com...

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  20. An inlet pipe can fill a tank in 5 hours and an outlet pipe can empty ...

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