medium Set 73 Form Exercise

Input: 7 → [+2] → ?

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Answer: 9

SubType
find-output
Rule
+2
Input
7
Output
9
Difficulty
medium

Input: 2 → [?] → 5, what is the rule?

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Answer: ×2 + 1

SubType
find-rule
Rule
×2 + 1
Input
2
Output
5
Difficulty
medium

Input: 5 → [?] → 18, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
5
Output
18
Difficulty
medium

Input: 4 → [?] → 9, what is the rule?

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Answer: ×2 + 1

SubType
find-rule
Rule
×2 + 1
Input
4
Output
9
Difficulty
medium

Input: 7 → [?] → 21, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
7
Output
21
Difficulty
medium

Input: 9 → [?] → 26, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
9
Output
26
Difficulty
medium

? → [×2 + 1] → 9

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Answer: 4

SubType
find-input
Rule
×2 + 1
Input
4
Output
9
Difficulty
medium

? → [×2 + 3] → 11

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Answer: 4

SubType
find-input
Rule
×2 + 3
Input
4
Output
11
Difficulty
medium