Answer :

Given:

Average age of doctors and lawyers = 40 Average age of doctors = 35

Average age of lawyers = 50

To find: Ration of number of doctors to the number of lawyers

Let a = Number of doctors

b = Number of lawyers

x = total age of doctors

y = total age of lawyers

According to the problem,

ð x = 35a and y = 50b

Total age of doctors and lawyers = x+y

According to the problem,

ð

ð

ð

ð

ð

Therefore, the ratio of ages of doctors and lawyers is 2:1

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