The work

The work was to be done by 150 workers. At the beginning of their work, their number reduced by 40, which increased the time of work by 5 and 1/3 of the schedule. How long did work take?

Correct answer:

t =  20 d

Step-by-step explanation:

n=150 T=531=5+31=35 3+1=3165.3333  n(tT)=(n40) t 150(t5.3333333333333)=(15040) t  150 (t5.3333333333333)=(15040) t  40t=800  t=20=20 d

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