Question

What should come in place of the question mark (?) in the given series? 101 111 122 134 147 ?

• A. 158
• B. 161
• C. 151
• D. 156

Answer 1

Answer:

B. 161

Let’s find the pattern in the series:

101, 111, 122, 134, 147, ?

Find the differences

111 − 101 = 10
122 − 111 = 11
134 − 122 = 12
147 − 134 = 13

So the pattern is:

+10, +11, +12, +13

Next difference should be:

+14

Add 14 to 147

147 + 14 = 161

Final Answer:

161