A) 19
B) 16
C) 12
D) 20
Correct Answer: D
Solution :
The outer number added to its two connected numbers always total 20. For example: \[3+7+10=20,\]\[7+4+9=20,\,\,\text{etc}\text{.}\]
You need to login to perform this action.
You will be redirected in
3 sec
