Arun and Vinay together can do a piece of work in 7 days. If Arun does twice as much work as Vinay in a given time, how long will Arun alone take to do the work?

Arun and Vinay together can do a piece of work in 7 days. If Arun does twice as much work as Vinay in a given time, how long will Arun alone take to do the work?

  • A. 6.33 days
  • B. 10.5 days
  • C. 11 days
  • D. 72 days
 

The correct answer is option B. 10.5 days. Can you explain this answer in the comments?


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Arun and Vinay together can do a piece of work in 7 days. If Arun does twice as much work as Vinay in a given time, how long will Arun alone take to do the work?




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