Three years ago the average age of A and B was 18 years. While C joining them now, the average becomes 22 years. How old (in years) is C now? - Study24x7
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68 followers study24x7 11 Jan 2019 05:27 PM study24x7 study24x7

Three years ago the average age of A and B was 18 years. While C joining them now, the average becomes 22 years. How old (in years) is C now?

A

24

B

27

C

28

D

30

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