expert Set 19 Form Exercise

Input: 2 → [?] → 7, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
2
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: 6 → [+10] → ?

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Answer: 16

SubType
find-output
Rule
+10
Input
6
Output
16
Difficulty
expert

Input: 4 → [+10] → ?

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Answer: 14

SubType
find-output
Rule
+10
Input
4
Output
14
Difficulty
expert

? → [×3] → 21

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Answer: 7

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

Input: 10 → [?] → 50, what is the rule?

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Answer: ×5

SubType
find-rule
Rule
×5
Input
10
Output
50
Difficulty
expert

? → [×2 + 3] → 15

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Answer: 6

SubType
find-input
Rule
×2 + 3
Input
6
Output
15
Difficulty
expert

? → [×2] → 4

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Answer: 2

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