the average age of doctors and lawyes together is 40. if doctors average age is 35 and the lawyers average is 50. find the ratio of the num of doctors and num of lawyers
Answers
Answered by
52
let no of doctors is x and no of lawyers is y. sum of age of doctors be s and sum of age of lawyers be r.
therefore s/x = 35 r/y = 50
(s+r)/(x+y) = 40
35x + 50y = 40x+40y
5x = 10y
x/y = 2:1
therefore s/x = 35 r/y = 50
(s+r)/(x+y) = 40
35x + 50y = 40x+40y
5x = 10y
x/y = 2:1
Answered by
0
Answer:
I don't understand what are you asking
Similar questions