medium Set 50 Form Exercise

Input: 5 → [?] → 11, what is the rule?

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Answer: ×2 + 1

SubType
find-rule
Rule
×2 + 1
Input
5
Output
11
Difficulty
medium

Input: 9 → [?] → 21, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
9
Output
21
Difficulty
medium

? → [+10] → 12

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Answer: 2

SubType
find-input
Rule
+10
Input
2
Output
12
Difficulty
medium

Input: 9 → [?] → 8, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
9
Output
8
Difficulty
medium

Input: 2 → [×5] → ?

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Answer: 10

SubType
find-output
Rule
×5
Input
2
Output
10
Difficulty
medium

Input: 5 → [?] → 2, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
5
Output
2
Difficulty
medium

Input: 4 → [?] → 14, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
4
Output
14
Difficulty
medium

Input: 4 → [?] → 16, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
4
Output
16
Difficulty
medium