medium Set 91 Form Exercise

Input: 4 → [?] → 6, what is the rule?

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Answer: +2

SubType
find-rule
Rule
+2
Input
4
Output
6
Difficulty
medium

Input: 8 → [+2] → ?

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Answer: 10

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

Input: 9 → [?] → 19, what is the rule?

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Answer: ×2 + 1

SubType
find-rule
Rule
×2 + 1
Input
9
Output
19
Difficulty
medium

Input: 3 → [×2] → ?

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Answer: 6

SubType
find-output
Rule
×2
Input
3
Output
6
Difficulty
medium

? → [+2] → 11

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Answer: 9

SubType
find-input
Rule
+2
Input
9
Output
11
Difficulty
medium

Input: 5 → [+10] → ?

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Answer: 15

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

Input: 10 → [?] → 28, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
10
Output
28
Difficulty
medium