expert Set 79 Form Exercise

Input: 5 → [?] → 15, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
5
Output
15
Difficulty
expert

Input: 8 → [?] → 22, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
8
Output
22
Difficulty
expert

? → [+5] → 9

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Answer: 4

SubType
find-input
Rule
+5
Input
4
Output
9
Difficulty
expert

? → [×2] → 10

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Answer: 5

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

Input: 8 → [?] → 40, what is the rule?

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Answer: ×5

SubType
find-rule
Rule
×5
Input
8
Output
40
Difficulty
expert

Input: 2 → [-1] → ?

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Answer: 1

SubType
find-output
Rule
-1
Input
2
Output
1
Difficulty
expert

Input: 4 → [×5] → ?

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Answer: 20

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

Input: 4 → [?] → 16, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
4
Output
16
Difficulty
expert