medium Set 40 Form Exercise

Input: 7 → [×3] → ?

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Answer: 21

SubType
find-output
Rule
×3
Input
7
Output
21
Difficulty
medium

Input: 6 → [×3] → ?

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Answer: 18

SubType
find-output
Rule
×3
Input
6
Output
18
Difficulty
medium

Input: 3 → [?] → 13, what is the rule?

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Answer: +10

SubType
find-rule
Rule
+10
Input
3
Output
13
Difficulty
medium

? → [×3 - 2] → 28

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Answer: 10

SubType
find-input
Rule
×3 - 2
Input
10
Output
28
Difficulty
medium

? → [+10] → 20

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Answer: 10

SubType
find-input
Rule
+10
Input
10
Output
20
Difficulty
medium

Input: 4 → [?] → 12, what is the rule?

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Answer: ×3

SubType
find-rule
Rule
×3
Input
4
Output
12
Difficulty
medium

Input: 2 → [?] → 12, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
2
Output
12
Difficulty
medium

? → [×2 + 3] → 15

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Answer: 6

SubType
find-input
Rule
×2 + 3
Input
6
Output
15
Difficulty
medium