medium Set 39 Form Exercise

? → [+10] → 19

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Answer: 9

SubType
find-input
Rule
+10
Input
9
Output
19
Difficulty
medium

Input: 4 → [+5] → ?

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Answer: 9

SubType
find-output
Rule
+5
Input
4
Output
9
Difficulty
medium

Input: 8 → [?] → 5, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
8
Output
5
Difficulty
medium

? → [+2] → 4

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Answer: 2

SubType
find-input
Rule
+2
Input
2
Output
4
Difficulty
medium

Input: 9 → [×2 + 1] → ?

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Answer: 19

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

Input: 9 → [?] → 6, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
9
Output
6
Difficulty
medium

Input: 6 → [?] → 3, what is the rule?

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Answer: -3

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

Input: 4 → [×3 - 2] → ?

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Answer: 10

SubType
find-output
Rule
×3 - 2
Input
4
Output
10
Difficulty
medium