Welcome Guest | Sign in | Register
Number Series - Discussion Page For Q.2506 | Logical Reasoning Questions and Answers | Logical Reasoning Free Online-Tests | LucentBlackBoard | LucentBlackBoard.com

Home > Logical Reasoning > Number Series > Questions and Answers

Q:  Look at this series: 4, 7, 25, 10, __, 20, 16, 19, ... What number should fill the blank?
A. 13 B. 15
C. 20 D. 28

Answer and Explanation

Answer:13

Explanation:
Two series alternate here, with every third number following a different pattern. In the main series, 3 is added to each number to arrive at the next. In the alternating series, 5 is subtracted from each number to arrive at the next.

Comment on this Question

Name:

Loading...




Partner Sites
LucentBlackBoard.com                  SoftLucent.com                  LucentJobs.com
All rights reserved © 2012-2015 SoftLucent.