In a grass field if 40 cows could eat for 40 days.The same grass field – McqOptions

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1.	In a grass field if 40 cows could eat for 40 days.The same grass field can feed 30 cows for 60 days.how long will it feed 20 cows?
A.	80
B.	85
C.	70
D.	60
Answer» B. 85

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