expert Set 77 Form Exercise

Input: 8 → [?] → 18, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
8
Output
18
Difficulty
expert

Input: 3 → [×3] → ?

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Answer: 9

SubType
find-output
Rule
×3
Input
3
Output
9
Difficulty
expert

Input: 4 → [?] → 20, what is the rule?

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Answer: ×5

SubType
find-rule
Rule
×5
Input
4
Output
20
Difficulty
expert

? → [+2] → 4

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Answer: 2

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

Input: 9 → [+5] → ?

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Answer: 14

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

Input: 7 → [-1] → ?

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Answer: 6

SubType
find-output
Rule
-1
Input
7
Output
6
Difficulty
expert

? → [×2] → 14

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Answer: 7

SubType
find-input
Rule
×2
Input
7
Output
14
Difficulty
expert

? → [×5] → 35

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Answer: 7

SubType
find-input
Rule
×5
Input
7
Output
35
Difficulty
expert