hard Set 41 Form Exercise

Input: 4 → [?] → 16, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
4
Output
16
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

? → [×2 + 3] → 15

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Answer: 6

SubType
find-input
Rule
×2 + 3
Input
6
Output
15
Difficulty
hard

Input: 5 → [×3] → ?

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Answer: 15

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

Input: 10 → [×2] → ?

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Answer: 20

SubType
find-output
Rule
×2
Input
10
Output
20
Difficulty
hard

Input: 8 → [?] → 13, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
8
Output
13
Difficulty
hard

? → [+4 ×2] → 14

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Answer: 3

SubType
find-input
Rule
+4 ×2
Input
3
Output
14
Difficulty
hard

Input: 1 → [?] → 1, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
1
Output
1
Difficulty
hard