12 men and 18 boys working 7 1/2 hours a day can do a certain work in 60 :

12 men and 18 boys working 7 1/2 hours a day can do a certain work in 60 If one man works equal to 2 boys, then the number of boys required to help 21 men to do twice the work in 50 days, working 9 hours a day, will be

  1. 30
  2. 42
  3. 48
  4. 90
Anurag Mishra Professor Asked on 24th January 2016 in Maths.
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    Answer: (2) 42 

    Anurag Mishra Professor Answered on 24th January 2016.
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