3 cows graze the field in 3 days and 2 cows graze the field in 2 days then how many days does it take 1 cow to graze the complete field?

THE ACTUAL QUESTION IS THIS....

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3 cows graze the field in 3 days and 2 cows graze the field in 6 days then how many days does it take 1 cow to graze the complete field?

mathematical answer

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let

one cow graze th field in n days

initially length of the grass = g.

grazing rate for the cow= r;

growing rate of the grass =R;

now

g+ no.of days* grazing rate=no. of the cows *no. of days *grazing rate.

g+3*R=3*3*r ---------->(1)

g+6*R=2*6*r ---------->(2)

g+n*R=1*n*r ----------->(3)

on solving the equation (1) and (2)

r =R

i.e. grazing rate = Growing rate

hence

we can say that one cow can not finish the grass from the field

manually

put r =R in equation (4).

g+n*r=n*r (Invalid equation )

without using mathematic we can also solve it logically

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as we know that grass is continuously growing, if cow is grazing at one place, grass id growing at other places, hence it can not be finished

Saurabh Tripathi @ vasudhaika Software Solution Pvt.Ltd Hyderabad