hard Set 16 Form Exercise

? → [+4 ×2] → 28

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Answer: 10

SubType
find-input
Rule
+4 ×2
Input
10
Output
28
Difficulty
hard

Input: 10 → [?] → 15, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
10
Output
15
Difficulty
hard

Input: 8 → [?] → 19, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
8
Output
19
Difficulty
hard

Input: 8 → [?] → 5, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
8
Output
5
Difficulty
hard

? → [+2] → 6

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Answer: 4

SubType
find-input
Rule
+2
Input
4
Output
6
Difficulty
hard

? → [×3 - 2] → 4

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Answer: 2

SubType
find-input
Rule
×3 - 2
Input
2
Output
4
Difficulty
hard

Input: 6 → [+5] → ?

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Answer: 11

SubType
find-output
Rule
+5
Input
6
Output
11
Difficulty
hard

Input: 7 → [?] → 4, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
7
Output
4
Difficulty
hard