Question

What will be the next number in the given number sequence?
1, 3, 8, 19, 42, 89, ___

• A. 181
• B. 183
• C. 182
• D. 184

Answer 1

The correct option is D 184

Following pattern can be observed in the given number sequence,
Second term can be written as
= (2 $\times$ first term) + 1,
= (2 $\times$ 1) + 1
= 3
Third term can be written as
= (2 $\times$ second term) + 2,
= (2 $\times$ 3) + 2
= 8
Fourth term can be written as
= (2 $\times$ third term) + 3,
= (2 $\times$ 8) + 3,
= 19

Fifth term can be written as
= (2 $\times$ fourth term) + 4,
= (2 $\times$ 19) + 4,
= 42

Therefore the required number will be
= (2 $\times$ 89) + 6,
= 184