expert Set 55 Form Exercise

Input: 1 → [?] → 6, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
1
Output
6
Difficulty
expert

? → [×5] → 5

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Answer: 1

SubType
find-input
Rule
×5
Input
1
Output
5
Difficulty
expert

? → [+2] → 4

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Answer: 2

SubType
find-input
Rule
+2
Input
2
Output
4
Difficulty
expert

Input: 7 → [+2] → ?

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Answer: 9

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

? → [×2] → 10

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Answer: 5

SubType
find-input
Rule
×2
Input
5
Output
10
Difficulty
expert

Input: 4 → [?] → 14, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
4
Output
14
Difficulty
expert

? → [×5] → 10

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Answer: 2

SubType
find-input
Rule
×5
Input
2
Output
10
Difficulty
expert

Input: 6 → [?] → 5, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
6
Output
5
Difficulty
expert