expert Set 60 Form Exercise

Input: 10 → [?] → 30, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
10
Output
30
Difficulty
expert

Input: 9 → [?] → 18, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
9
Output
18
Difficulty
expert

Input: 6 → [?] → 11, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
6
Output
11
Difficulty
expert

? → [×3 - 2] → 25

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Answer: 9

SubType
find-input
Rule
×3 - 2
Input
9
Output
25
Difficulty
expert

? → [-1] → 2

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Answer: 3

SubType
find-input
Rule
-1
Input
3
Output
2
Difficulty
expert

Input: 7 → [×2] → ?

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Answer: 14

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

? → [×2] → 16

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Answer: 8

SubType
find-input
Rule
×2
Input
8
Output
16
Difficulty
expert

Input: 1 → [?] → 3, what is the rule?

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Answer: ×2 + 1

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