hard Set 56 Form Exercise

Input: 3 → [?] → 7, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
3
Output
7
Difficulty
hard

Input: 7 → [+2] → ?

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Answer: 9

SubType
find-output
Rule
+2
Input
7
Output
9
Difficulty
hard

Input: 6 → [?] → 8, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
6
Output
8
Difficulty
hard

Input: 9 → [?] → 8, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
9
Output
8
Difficulty
hard

? → [+10] → 15

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Answer: 5

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

Input: 1 → [+5] → ?

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Answer: 6

SubType
find-output
Rule
+5
Input
1
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