medium Set 41 Form Exercise

Input: 5 → [?] → 2, what is the rule?

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Answer: -3

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

? → [-1] → 3

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Answer: 4

SubType
find-input
Rule
-1
Input
4
Output
3
Difficulty
medium

Input: 1 → [×2 + 1] → ?

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Answer: 3

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

Input: 6 → [×3] → ?

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Answer: 18

SubType
find-output
Rule
×3
Input
6
Output
18
Difficulty
medium

Input: 1 → [+5] → ?

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Answer: 6

SubType
find-output
Rule
+5
Input
1
Output
6
Difficulty
medium

? → [+10] → 20

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Answer: 10

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

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
medium

Input: 4 → [+5] → ?

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Answer: 9

SubType
find-output
Rule
+5
Input
4
Output
9
Difficulty
medium