medium Set 71 Form Exercise

Input: 4 → [?] → 11, what is the rule?

Show answer

Answer: ×2 + 3

SubType
find-rule
Rule
×2 + 3
Input
4
Output
11
Difficulty
medium

Input: 3 → [×3] → ?

Show answer

Answer: 9

SubType
find-output
Rule
×3
Input
3
Output
9
Difficulty
medium

Input: 9 → [+4 ×2] → ?

Show answer

Answer: 26

SubType
find-output
Rule
+4 ×2
Input
9
Output
26
Difficulty
medium

Input: 5 → [?] → 10, what is the rule?

Show answer

Answer: +5

SubType
find-rule
Rule
+5
Input
5
Output
10
Difficulty
medium

? → [×2] → 20

Show answer

Answer: 10

SubType
find-input
Rule
×2
Input
10
Output
20
Difficulty
medium

Input: 7 → [?] → 21, what is the rule?

Show answer

Answer: ×3

SubType
find-rule
Rule
×3
Input
7
Output
21
Difficulty
medium

? → [×3 - 2] → 25

Show answer

Answer: 9

SubType
find-input
Rule
×3 - 2
Input
9
Output
25
Difficulty
medium

Input: 9 → [+5] → ?

Show answer

Answer: 14

SubType
find-output
Rule
+5
Input
9
Output
14
Difficulty
medium