There are 648 cows and sheep on a farm. The ratio of the number of cows to the number of sheep is 5:4. At an auction, 2/3 of the sheep and some cows are sold. The ratio of the number of cows to the number of sheep left is no 3:1. How many cows are sold?

Question

Is the answer 144?

Answer 1

Nope. Too bad you didn't show your work...
c+s = 648
c/s = 5/4
If x cows are sold then
(c-x)/(s/3) = 3/1

Answer 2

X sheep.
5x/4 cows.

x + 5x/4 = 648,
4x + 5x = 2592,
X = 288.
5x/4 = 360.
After the auction:
288/3 = 96 sheep left.
Cows left = 3 * 96 =

Answer 3

Cows sold = 360 - cows left.

Answer 4

Woo Wee! Love this question!
It is going to be part of a grade 9 math assignment in this coming week.
Thank-you Indiana Jones for sharing : )
And thank-you henry2 and oobleck for 2 different solutions (than mine : )

Answer 5

this is 9th grade math????!!!!

Answer 6

2wedrf