In a grass field, If there are 40 cows, they could eat for
40 days. If there are 30 cows, they could eat for 60 days.
Than if 20 cows, How much day they could eat?
a) 60 b) 80 c)55 d)50

Answer Posted / ayyangar

options are suspectable...
isn't it?
answer is 120
For 25 cows the days required are 80..
observe the equations
(40*x-g)*40=(30*x-g)*60=(20*x-g)*n.
where x is grass units per a cow,
g grass units incresed.
n is number of days reqired...

Is This Answer Correct ?    10 Yes 3 No



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