A and B rent a pasture for 11 months and A puts in 80 cows for 7 months. How many cows can B put in for the remaining 4 months, if he ( B ) pays half as much as A ?
Answer & explanation
Correct answer: option 1
Let the rent for one cow = Rs.1/pm
Then, rent for each partners = no. of cows × time
A : B
No. : 80 : x
Time : 7 : 4
-------------------------
Rent : 560 : 4x
So ATQ,
B paid half the rent paid by A = \(\frac{560}{2}\) = 280
⇒ 4x = 280
⇒ x = 70
Therefore, B puts in 70 cows for the rest 4 months.