What is the sum of all the composite numbers up to 20?

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Question

What is the sum of all the composite numbers up to 20?

Options:

A . 128

B . 130

C . 131

D . 132

Answer: Option D

4 +
6 + 8 + 9 + 10 + 12 + 14 + 15 + 16 + 18 = 132

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