expert Set 91 Form Exercise

? → [×2 + 3] → 11

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Answer: 4

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

Input: 7 → [×3] → ?

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Answer: 21

SubType
find-output
Rule
×3
Input
7
Output
21
Difficulty
expert

Input: 1 → [?] → 1, what is the rule?

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Answer: ×3 - 2

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

? → [-3] → 3

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Answer: 6

SubType
find-input
Rule
-3
Input
6
Output
3
Difficulty
expert

Input: 3 → [?] → 9, what is the rule?

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Answer: ×3

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

? → [×3] → 27

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Answer: 9

SubType
find-input
Rule
×3
Input
9
Output
27
Difficulty
expert

Input: 6 → [?] → 3, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
6
Output
3
Difficulty
expert

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
expert