hard Set 98 Form Exercise

? → [×3] → 6

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Answer: 2

SubType
find-input
Rule
×3
Input
2
Output
6
Difficulty
hard

Input: 3 → [?] → 7, what is the rule?

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Answer: ×2 + 1

SubType
find-rule
Rule
×2 + 1
Input
3
Output
7
Difficulty
hard

Input: 10 → [+10] → ?

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Answer: 20

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

? → [×2] → 14

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Answer: 7

SubType
find-input
Rule
×2
Input
7
Output
14
Difficulty
hard

Input: 4 → [?] → 10, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
4
Output
10
Difficulty
hard

? → [+5] → 13

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Answer: 8

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

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

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Answer: ×5

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

Input: 3 → [?] → 9, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
3
Output
9
Difficulty
hard