medium Set 98 Form Exercise

Input: 9 → [?] → 25, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
9
Output
25
Difficulty
medium

? → [×5] → 35

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Answer: 7

SubType
find-input
Rule
×5
Input
7
Output
35
Difficulty
medium

Input: 2 → [+4 ×2] → ?

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Answer: 12

SubType
find-output
Rule
+4 ×2
Input
2
Output
12
Difficulty
medium

? → [×2 + 1] → 7

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Answer: 3

SubType
find-input
Rule
×2 + 1
Input
3
Output
7
Difficulty
medium

? → [×2 + 1] → 15

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Answer: 7

SubType
find-input
Rule
×2 + 1
Input
7
Output
15
Difficulty
medium

Input: 6 → [?] → 12, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
6
Output
12
Difficulty
medium

? → [×2 + 3] → 17

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Answer: 7

SubType
find-input
Rule
×2 + 3
Input
7
Output
17
Difficulty
medium

Input: 5 → [×3] → ?

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Answer: 15

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