medium Set 15 Form Exercise

Input: 7 → [?] → 9, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
7
Output
9
Difficulty
medium

Input: 4 → [×3 - 2] → ?

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Answer: 10

SubType
find-output
Rule
×3 - 2
Input
4
Output
10
Difficulty
medium

Input: 9 → [?] → 21, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
9
Output
21
Difficulty
medium

Input: 10 → [×3] → ?

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Answer: 30

SubType
find-output
Rule
×3
Input
10
Output
30
Difficulty
medium

Input: 6 → [?] → 8, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
6
Output
8
Difficulty
medium

Input: 10 → [?] → 7, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
10
Output
7
Difficulty
medium

? → [×3] → 6

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Answer: 2

SubType
find-input
Rule
×3
Input
2
Output
6
Difficulty
medium

? → [×3] → 30

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Answer: 10

SubType
find-input
Rule
×3
Input
10
Output
30
Difficulty
medium