hard Set 28 Form Exercise

? → [×2] → 12

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Answer: 6

SubType
find-input
Rule
×2
Input
6
Output
12
Difficulty
hard

Input: 3 → [?] → 13, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
3
Output
13
Difficulty
hard

Input: 9 → [+5] → ?

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Answer: 14

SubType
find-output
Rule
+5
Input
9
Output
14
Difficulty
hard

Input: 10 → [×3 - 2] → ?

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Answer: 28

SubType
find-output
Rule
×3 - 2
Input
10
Output
28
Difficulty
hard

? → [+10] → 19

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Answer: 9

SubType
find-input
Rule
+10
Input
9
Output
19
Difficulty
hard

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
hard

Input: 8 → [?] → 10, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
8
Output
10
Difficulty
hard

Input: 8 → [-1] → ?

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Answer: 7

SubType
find-output
Rule
-1
Input
8
Output
7
Difficulty
hard