expert Set 59 Form Exercise

Input: 5 → [?] → 7, what is the rule?

Show answer

Answer: +2

SubType
find-rule
Rule
+2
Input
5
Output
7
Difficulty
expert

Input: 7 → [?] → 15, what is the rule?

Show answer

Answer: ×2 + 1

SubType
find-rule
Rule
×2 + 1
Input
7
Output
15
Difficulty
expert

Input: 9 → [×3] → ?

Show answer

Answer: 27

SubType
find-output
Rule
×3
Input
9
Output
27
Difficulty
expert

Input: 6 → [+10] → ?

Show answer

Answer: 16

SubType
find-output
Rule
+10
Input
6
Output
16
Difficulty
expert

? → [+4 ×2] → 22

Show answer

Answer: 7

SubType
find-input
Rule
+4 ×2
Input
7
Output
22
Difficulty
expert

? → [×5] → 30

Show answer

Answer: 6

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

? → [×3 - 2] → 19

Show answer

Answer: 7

SubType
find-input
Rule
×3 - 2
Input
7
Output
19
Difficulty
expert

? → [×2 + 1] → 11

Show answer

Answer: 5

SubType
find-input
Rule
×2 + 1
Input
5
Output
11
Difficulty
expert