Question

What should come in place of the question mark (?) in the following number series?

61 71 86 ? 131 161

A 103 Correct Answer Incorrect Answer
B 107 Correct Answer Incorrect Answer
C 106 Correct Answer Incorrect Answer
D 112 Correct Answer Incorrect Answer
E 109 Correct Answer Incorrect Answer

Solution

61 + 10 = 71 71 + 15 = 86 86 + 20 = 106 106 + 25 = 131 131 + 30 = 161

Practice Next
×
×