19 | 23 | 30 | 40 | ? | 69 |
A) 51
B) 53
C) 57
D) 63
E) 49
Correct Answer: B
Solution :
The series is \[19+4=23,\text{ }23+7=30,\] \[30+10=40,\text{ }40+13=\mathbf{53},\text{ }53+16=69,...\]You need to login to perform this action.
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