medium Set 38 Form Exercise

Input: 1 → [-1] → ?

SubType
find-output
Rule
-1
Input
1
Output
0
Difficulty
medium

? → [×5] → 5

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Answer: 1

SubType
find-input
Rule
×5
Input
1
Output
5
Difficulty
medium

Input: 8 → [+2] → ?

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Answer: 10

SubType
find-output
Rule
+2
Input
8
Output
10
Difficulty
medium

? → [×5] → 15

Show answer

Answer: 3

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

Input: 2 → [-1] → ?

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Answer: 1

SubType
find-output
Rule
-1
Input
2
Output
1
Difficulty
medium

Input: 5 → [?] → 13, what is the rule?

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Answer: ×3 - 2

SubType
find-rule
Rule
×3 - 2
Input
5
Output
13
Difficulty
medium

? → [+2] → 7

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Answer: 5

SubType
find-input
Rule
+2
Input
5
Output
7
Difficulty
medium

Input: 3 → [×5] → ?

Show answer

Answer: 15

SubType
find-output
Rule
×5
Input
3
Output
15
Difficulty
medium