arithmetic - gokul buys 9 horses and 4 cows for rs 13400 if he sells the horses at 20 profit and the cows at 10 profit then he earns a total profit of rs 1880 the cost of a cow is - skillgun

Solution: Let C.P. of each horse and be Rs. X and C.P. of each cow be Rs. Y. then,
9x+4y =13,400 -------> (1)
And, 20% of 9x + 10% of 4y = 1880.
9x/5 + 2y/5 = 1880 => 9x+2y =9400 -------> (2)
solving (1) and (2), we get : x = 600 and y =2000.
.'. cost price of each cow = Rs. 2000.