Question

Your like rate for people under the age of 40 is 11%. If the total audience for this platform is 578,900 with the following age distribution, how many likes will you get if you choose only to have your post shown to people under age 40? 18-24: 43%, 25-39: 35%, 40+: 22% ​

Answer 1

18-24: 43% of 578,900 = 248,067
25-39: 35% of 578,900 = 202,315
Total under 40: 248,067 + 202,315 = 450,382

Then, we can calculate the number of likes if the post is only shown to people under age 40:

450,382 * 11% = 49,542 likes