Learn and practice Aptitude questions and answers with explanation for interview, competitive exam (Pariksha Corner )

Saturday, November 24, 2018

21, 25, 33, 49, 81, (_)

In the following questions, find the number which can be put in the blank to complete the series. 21, 25, 33, 49, 81, (......)
A145
B129
C113
D97

Answer is : 145

The pattern is + 4, + 8, + 16, + 32,.... 

\(i.e. + 2^2, + 2^3, + 2^4, + 2^5,...\)
\(\therefore \text{Missing number} = 81 + 2^6 = 81 + 64\)

= 145.

Akilesh Kharvi
answered Sun Oct 16 2016 12:30:00 GMT+0530 (IST)

All Comments

Post your answers here:

Post

Post your comments here:

Post

Categories