hard Set 94 Form Exercise

Input: 5 → [?] → 2, what is the rule?

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Answer: -3

SubType
find-rule
Rule
-3
Input
5
Output
2
Difficulty
hard

? → [-1] → 3

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Answer: 4

SubType
find-input
Rule
-1
Input
4
Output
3
Difficulty
hard

? → [×3] → 15

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Answer: 5

SubType
find-input
Rule
×3
Input
5
Output
15
Difficulty
hard

? → [+4 ×2] → 28

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Answer: 10

SubType
find-input
Rule
+4 ×2
Input
10
Output
28
Difficulty
hard

? → [+10] → 18

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Answer: 8

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

? → [×2 + 3] → 23

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Answer: 10

SubType
find-input
Rule
×2 + 3
Input
10
Output
23
Difficulty
hard

Input: 10 → [×3 - 2] → ?

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Answer: 28

SubType
find-output
Rule
×3 - 2
Input
10
Output
28
Difficulty
hard

? → [+5] → 11

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Answer: 6

SubType
find-input
Rule
+5
Input
6
Output
11
Difficulty
hard