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?
A. 4.2 B. 4.4
C. 4.7 D. 5.1
Answer & Explanation
Answer: Option C
Explanation:
In this simple addition series, each number increases by 0.8.
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12.
Look at this series: 14, 28, 20, 40, 32, 64, … What number should come next?
A. 52 B. 56
C. 96 D. 128
Answer & Explanation
Answer: Option B
Explanation:
This is an alternating multiplication and subtracting series: First, multiply by 2 and then subtract 8.
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13.
Look at this series: 2, 4, 6, 8, 10, … What number should come next?
A. 11 B. 12
C. 13 D. 14
Answer & Explanation
Answer: Option B
Explanation:
This is a simple addition series. Each number increases by 2.
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14.
Look at this series: 201, 202, 204, 207, … What number should come next?
A. 205 B. 208
C. 210 D. 211
Answer & Explanation
Answer: Option D
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.
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15.
Look at this series: 544, 509, 474, 439, … What number should come next?
A. 404 B. 414
C. 420 D. 445
Answer & Explanation
Answer: Option A
Explanation:
This is a simple subtraction series. Each number is 35 less than the previous number.