Step 1:
meassure angle for group 0-19 that lives in Adley
Step 2:
divide this angle by 360. this is proportional of that group in total number of people in Adley
Repeat these steps for group 0-19 in Bridford.
Final solution can be found by multiplying the two solutions of step 2.
C+s=48
2c+4s=134 ⇒ c+2s=67
subtracting the equations, we get, s=67-48=19,
so, c=48-19=29
we simply divide the whole by the sum of the ratios, namely 28 by (3+4), and then distribute accordingly.
Answer:
22
Step-by-step explanation: