easy Set 68 Form Exercise

? → [-1] → 2

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Answer: 3

SubType
find-input
Rule
-1
Input
3
Output
2
Difficulty
normal

Input: 10 → [?] → 30, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
10
Output
30
Difficulty
normal

? → [×3] → 6

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Answer: 2

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

Input: 9 → [×3] → ?

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Answer: 27

SubType
find-output
Rule
×3
Input
9
Output
27
Difficulty
normal

Input: 9 → [×5] → ?

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Answer: 45

SubType
find-output
Rule
×5
Input
9
Output
45
Difficulty
normal

Input: 5 → [?] → 7, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
5
Output
7
Difficulty
normal

? → [×2] → 8

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Answer: 4

SubType
find-input
Rule
×2
Input
4
Output
8
Difficulty
normal

? → [×5] → 15

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Answer: 3

SubType
find-input
Rule
×5
Input
3
Output
15
Difficulty
normal