40 men can build a wall 200 m long in 12 days, working 8 h a day. What will be the number of days that 30 men will take to build a similar wall 300 m long, working 6 h per day


A) 32

B) 18

C) 36

D) 9

Correct Answer:
A) 32

Description for Correct answer:

Given,M1 =40





W1 =200





T1 =8





D1= 12





M2 = 30





W2 = 300





T2 = 6 and D2 = ?





Then, using M1T1D1W2 = M2T2D2W1





40 x8 x 12 x 300 = 30 x6 x D2 x200





D2 = \( \Large\frac{40 \times 8 \times 12 \times 300}{30 \times 6 \times 200} \)





= 32 days.




Part of solved Time and work questions and answers : >> Aptitude >> Time and work








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