expert Set 21 Form Exercise

Input: 6 → [?] → 18, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
6
Output
18
Difficulty
expert

Input: 9 → [×2 + 1] → ?

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Answer: 19

SubType
find-output
Rule
×2 + 1
Input
9
Output
19
Difficulty
expert

? → [+10] → 13

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Answer: 3

SubType
find-input
Rule
+10
Input
3
Output
13
Difficulty
expert

Input: 2 → [+4 ×2] → ?

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Answer: 12

SubType
find-output
Rule
+4 ×2
Input
2
Output
12
Difficulty
expert

Input: 1 → [?] → 5, what is the rule?

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Answer: ×5

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

? → [×2 + 3] → 15

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Answer: 6

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

Input: 5 → [×5] → ?

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Answer: 25

SubType
find-output
Rule
×5
Input
5
Output
25
Difficulty
expert

Input: 4 → [?] → 6, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
4
Output
6
Difficulty
expert