hard Set 27 Form Exercise

Input: 6 → [?] → 5, what is the rule?

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Answer: -1

SubType
find-rule
Rule
-1
Input
6
Output
5
Difficulty
hard

Input: 8 → [+10] → ?

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Answer: 18

SubType
find-output
Rule
+10
Input
8
Output
18
Difficulty
hard

Input: 1 → [+5] → ?

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Answer: 6

SubType
find-output
Rule
+5
Input
1
Output
6
Difficulty
hard

? → [+10] → 12

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Answer: 2

SubType
find-input
Rule
+10
Input
2
Output
12
Difficulty
hard

Input: 10 → [?] → 20, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
10
Output
20
Difficulty
hard

Input: 7 → [+5] → ?

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Answer: 12

SubType
find-output
Rule
+5
Input
7
Output
12
Difficulty
hard

? → [×3 - 2] → 7

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Answer: 3

SubType
find-input
Rule
×3 - 2
Input
3
Output
7
Difficulty
hard

Input: 4 → [?] → 8, what is the rule?

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Answer: ×2

SubType
find-rule
Rule
×2
Input
4
Output
8
Difficulty
hard