medium Set 16 Form Exercise

? → [+2] → 10

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Answer: 8

SubType
find-input
Rule
+2
Input
8
Output
10
Difficulty
medium

Input: 1 → [?] → 6, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
1
Output
6
Difficulty
medium

? → [+10] → 15

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Answer: 5

SubType
find-input
Rule
+10
Input
5
Output
15
Difficulty
medium

Input: 10 → [?] → 21, what is the rule?

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Answer: ×2 + 1

SubType
find-rule
Rule
×2 + 1
Input
10
Output
21
Difficulty
medium

? → [×2] → 16

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Answer: 8

SubType
find-input
Rule
×2
Input
8
Output
16
Difficulty
medium

Input: 6 → [?] → 11, what is the rule?

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Answer: +5

SubType
find-rule
Rule
+5
Input
6
Output
11
Difficulty
medium

Input: 6 → [?] → 18, what is the rule?

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Answer: ×3

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

? → [+2] → 9

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Answer: 7

SubType
find-input
Rule
+2
Input
7
Output
9
Difficulty
medium