hard Set 13 Form Exercise

Input: 7 → [-3] → ?

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Answer: 4

SubType
find-output
Rule
-3
Input
7
Output
4
Difficulty
hard

? → [×5] → 50

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Answer: 10

SubType
find-input
Rule
×5
Input
10
Output
50
Difficulty
hard

? → [+2] → 12

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Answer: 10

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

Input: 4 → [?] → 16, what is the rule?

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Answer: +4 ×2

SubType
find-rule
Rule
+4 ×2
Input
4
Output
16
Difficulty
hard

? → [+2] → 10

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Answer: 8

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

Input: 8 → [+5] → ?

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Answer: 13

SubType
find-output
Rule
+5
Input
8
Output
13
Difficulty
hard

Input: 8 → [+4 ×2] → ?

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Answer: 24

SubType
find-output
Rule
+4 ×2
Input
8
Output
24
Difficulty
hard

Input: 3 → [?] → 9, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
3
Output
9
Difficulty
hard