expert Set 37 Form Exercise

? → [×3] → 3

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Answer: 1

SubType
find-input
Rule
×3
Input
1
Output
3
Difficulty
expert

? → [×2 + 1] → 5

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Answer: 2

SubType
find-input
Rule
×2 + 1
Input
2
Output
5
Difficulty
expert

? → [+10] → 12

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Answer: 2

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

Input: 3 → [?] → 9, what is the rule?

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Answer: ×2 + 3

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

Input: 3 → [?] → 7, what is the rule?

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Answer: ×2 + 1

SubType
find-rule
Rule
×2 + 1
Input
3
Output
7
Difficulty
expert

? → [×3 - 2] → 7

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Answer: 3

SubType
find-input
Rule
×3 - 2
Input
3
Output
7
Difficulty
expert

Input: 4 → [×5] → ?

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Answer: 20

SubType
find-output
Rule
×5
Input
4
Output
20
Difficulty
expert

Input: 8 → [+4 ×2] → ?

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Answer: 24

SubType
find-output
Rule
+4 ×2
Input
8
Output
24
Difficulty
expert