Question

Plsss helpppp I’m stuck

Answer 1

b = 2c: Ben's age is twice Cindy's. So Cindy is 15 years old

(a + b + c) / 3 = 28: Their average age is 28 This tells us nothing as we already have Anne, Ben and Cindy's ages. It does however give us a quick way to check the answers:

`(a + b + c)/(3) = 28\\(39 + 30 + 15)/(3) = 28\\(84)/(3) = 28`

Correct, so we know values found are correct.

Answer 2

C=15
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