hard Set 78 Form Exercise

Input: 8 → [?] → 24, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
8
Output
24
Difficulty
hard

Input: 10 → [+10] → ?

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Answer: 20

SubType
find-output
Rule
+10
Input
10
Output
20
Difficulty
hard

Input: 7 → [?] → 12, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
7
Output
12
Difficulty
hard

Input: 2 → [?] → 4, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
2
Output
4
Difficulty
hard

? → [×5] → 30

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Answer: 6

SubType
find-input
Rule
×5
Input
6
Output
30
Difficulty
hard

? → [×5] → 10

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Answer: 2

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

? → [×2 + 1] → 15

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Answer: 7

SubType
find-input
Rule
×2 + 1
Input
7
Output
15
Difficulty
hard

? → [+10] → 18

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Answer: 8

SubType
find-input
Rule
+10
Input
8
Output
18
Difficulty
hard