The farmer

The farmer calculated that the supply of fodder for his 20 cows was enough for 60 days. He decided to sell 2 cows and a third of the feed. How long will the feed for the rest of the peasant's herd last?

Correct answer:

t =  44.4444 d

Step-by-step explanation:

n=20 d=60  n dn d/3=t (n2) 20 6020 60/3=t (202)  54t=2400  t=400944.444444=44.4444 d

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