expert Set 67 Form Exercise

Input: 9 → [×3 - 2] → ?

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Answer: 25

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

Input: 3 → [?] → 6, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
3
Output
6
Difficulty
expert

Input: 1 → [-1] → ?

SubType
find-output
Rule
-1
Input
1
Output
0
Difficulty
expert

Input: 1 → [?] → 0, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
1
Output
0
Difficulty
expert

? → [+5] → 13

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Answer: 8

SubType
find-input
Rule
+5
Input
8
Output
13
Difficulty
expert

Input: 9 → [?] → 19, what is the rule?

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Answer: ×2 + 1

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

Input: 2 → [×3 - 2] → ?

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Answer: 4

SubType
find-output
Rule
×3 - 2
Input
2
Output
4
Difficulty
expert

Input: 3 → [?] → 2, what is the rule?

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Answer: -1

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