medium Set 99 Form Exercise

Input: 2 → [?] → 4, what is the rule?

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Answer: ×3 - 2

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

Input: 6 → [-3] → ?

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Answer: 3

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

? → [+5] → 7

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Answer: 2

SubType
find-input
Rule
+5
Input
2
Output
7
Difficulty
medium

Input: 5 → [×2 + 1] → ?

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Answer: 11

SubType
find-output
Rule
×2 + 1
Input
5
Output
11
Difficulty
medium

Input: 6 → [?] → 5, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
6
Output
5
Difficulty
medium

Input: 8 → [+2] → ?

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Answer: 10

SubType
find-output
Rule
+2
Input
8
Output
10
Difficulty
medium

Input: 10 → [?] → 28, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
10
Output
28
Difficulty
medium