expert Set 53 Form Exercise

Input: 6 → [×5] → ?

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Answer: 30

SubType
find-output
Rule
×5
Input
6
Output
30
Difficulty
expert

Input: 6 → [?] → 15, what is the rule?

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Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
6
Output
15
Difficulty
expert

? → [+5] → 10

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Answer: 5

SubType
find-input
Rule
+5
Input
5
Output
10
Difficulty
expert

Input: 3 → [?] → 15, what is the rule?

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Answer: ×5

SubType
find-rule
Rule
×5
Input
3
Output
15
Difficulty
expert

? → [×2 + 3] → 9

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Answer: 3

SubType
find-input
Rule
×2 + 3
Input
3
Output
9
Difficulty
expert

? → [×3] → 6

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Answer: 2

SubType
find-input
Rule
×3
Input
2
Output
6
Difficulty
expert

? → [×3 - 2] → 1

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Answer: 1

SubType
find-input
Rule
×3 - 2
Input
1
Output
1
Difficulty
expert

? → [-3] → 0

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Answer: 3

SubType
find-input
Rule
-3
Input
3
Output
0
Difficulty
expert