medium Set 45 Form Exercise

Input: 6 → [?] → 16, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
6
Output
16
Difficulty
medium

Input: 7 → [?] → 6, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
7
Output
6
Difficulty
medium

Input: 10 → [+5] → ?

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Answer: 15

SubType
find-output
Rule
+5
Input
10
Output
15
Difficulty
medium

? → [+5] → 9

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Answer: 4

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

Input: 5 → [×2 + 3] → ?

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Answer: 13

SubType
find-output
Rule
×2 + 3
Input
5
Output
13
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: 6 → [+4 ×2] → ?

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Answer: 20

SubType
find-output
Rule
+4 ×2
Input
6
Output
20
Difficulty
medium

? → [×3 - 2] → 25

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Answer: 9

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