Logical Reasoning - Number Series

Exercise : Number Series - Type 1
Directions to Solve
In each series, look for the degree and direction of change between the numbers. In other words, do the numbers increase or decrease, and by how much

11.
Look at this series: 1.5, 2.3, 3.1, 3.9, ... What number should come next?
4.2
4.4
4.7
5.1
Answer: Option
Explanation:
In this simple addition series, each number increases by 0.8.

12.
Look at this series: 14, 28, 20, 40, 32, 64, ... What number should come next?
52
56
96
128
Answer: Option
Explanation:
This is an alternating multiplication and subtracting series: First, multiply by 2 and then subtract 8.

13.
Look at this series: 2, 4, 6, 8, 10, ... What number should come next?
11
12
13
14
Answer: Option
Explanation:
This is a simple addition series. Each number increases by 2.

14.
Look at this series: 201, 202, 204, 207, ... What number should come next?
205
208
210
211
Answer: Option
Explanation:
In this addition series, 1 is added to the first number; 2 is added to the second number; 3 is added to the third number; 4 is added to the fourth number; and go on.

15.
Look at this series: 544, 509, 474, 439, ... What number should come next?
404
414
420
445
Answer: Option
Explanation:
This is a simple subtraction series. Each number is 35 less than the previous number.