11.
Look at this series: J14, L16, __, P20, R22, … What number should fill the blank?
A. S24 B. N18
C. M18 D. T24
Answer & Explanation
Answer: Option B
Explanation:
In this series, the letters progress by 2, and the numbers increase by 2.
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12.
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 & Explanation
Answer: Option A
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.
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13.
Look at this series: XXIV, XX, __, XII, VIII, … What number should fill the blank?
A. XXII B. XIII
C. XVI D. IV
Answer & Explanation
Answer: Option C
Explanation:
This is a simple subtraction series; each number is 4 less than the previous number.
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14.
Look at this series: 0.15, 0.3, ____, 1.2, 2.4, … What number should fill the blank?
A. 4.8 B. 0.006
C. 0.6 D. 0.9
Answer & Explanation
Answer: Option C
Explanation:
This is a simple multiplication series. Each number is 2 times greater than the previous number.
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15.
Look at this series: U32, V29, __, X23, Y20, … What number should fill the blank?
A. W26 B. W17
C. Z17 D. Z26
Answer & Explanation
Answer: Option A
Explanation:
In this series, the letters progress by 1; the numbers decrease by 3.