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What is the pattern for 21,15,9,3
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What is the pattern for 21,15,9,3

User Alex Walczak
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Subtract 6 from the previous number
User Jan Groth
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Answer: 6

Step-by-step explanation:

3 add 6 you get 9. 9 add 6 you get 15. 15 add 6 you get 21 and so on

User Sybio
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