medium Set 42 Form Exercise

Input: 3 → [-1] → ?

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Answer: 2

SubType
find-output
Rule
-1
Input
3
Output
2
Difficulty
medium

Input: 6 → [?] → 15, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
6
Output
15
Difficulty
medium

Input: 10 → [?] → 20, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
10
Output
20
Difficulty
medium

Input: 2 → [?] → 12, what is the rule?

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Answer: +10

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

Input: 2 → [×3 - 2] → ?

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Answer: 4

SubType
find-output
Rule
×3 - 2
Input
2
Output
4
Difficulty
medium

? → [×3] → 15

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Answer: 5

SubType
find-input
Rule
×3
Input
5
Output
15
Difficulty
medium

Input: 10 → [×2 + 3] → ?

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Answer: 23

SubType
find-output
Rule
×2 + 3
Input
10
Output
23
Difficulty
medium

? → [×3 - 2] → 19

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Answer: 7

SubType
find-input
Rule
×3 - 2
Input
7
Output
19
Difficulty
medium