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1.
If 12 carpenters, working 6 hours a day,can make 460 chairs in 24 days, how many chairs will 18 carpenters make in 36days, each working 8 hours a day?
- A. 1260
- B. 1260
- C. 1260
- D. 1260
Answer: Option D
Explanation:
Total work time for 12 carpenters is
= 12×6×24 hours = 72×24 hours
Total work time for 18 chapter is = 18×8×36 hours = 144×36 hours
In 72×24 hours they can make 460 chairs
In 144×36 hours they can make ( 460×144×36)/(72×24) = 1380 chairs.
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