Question
There were 56 more ducks than chicken on a farm. After 1/3 of the chickens and 4/5 of the ducks were sold, there was an equal number of chickens and ducks left on the farm. How many ducks were there on the farm at first?
Answers
scott
d = c + 56
d / 5 = 2/3 c
multiplying by 15 (LCD) ... 3 d = 10 c
substituting ... 3 (c + 56) = 10 c ... 3c + 168 = 10 c
solve for c , then substitute back to find d
d / 5 = 2/3 c
multiplying by 15 (LCD) ... 3 d = 10 c
substituting ... 3 (c + 56) = 10 c ... 3c + 168 = 10 c
solve for c , then substitute back to find d