Question 47

If 8 people work 8 hours a day and finish a work in 8 days, how long will it take to finish the work if 4 people work 4 hours a day?


Using $$M_1D_1H_1$$ $$=M_2D_2H_2$$

Let time taken be $$D_2$$

=> $$8\times8\times8=4\times D_2\times4$$

=> $$D_2=4\times8=32$$ days

=> Ans - (D)

Video Solution


Create a FREE account and get:

  • Download Maths Shortcuts PDF
  • Get 300+ previous papers with solutions PDF
  • 500+ Online Tests for Free


Boost your Prep!

Download App