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- Logical Reasoning
- Number Series
- Section 4
Directions :
Find the
number that fits somewhere into the middle of the
series. Some of the items involve both numbers and letters;
for these questions, look for a number series and
a letter series.
1.
Look at this series: VI, 10, V, 11, __, 12, III, . . . What number should fill the blank?
- A.II
- C.IX
- B.IV
- D.14
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| This is an alternating addition and subtraction series. Roman numbers alternate with Arabic numbers. In the Roman numeral pattern, each number decreases by 1. In the Arabic numeral pattern, each number increases by 1. |
2.
| Look at this series: |
|
, |
|
, 1, __ ,9, . . .What number should fill the blank? |
- A.2/3
- C.6
- B.3
- D.27
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| This is a multiplication series; each number is 3 times the previous number. |
3.
Look at this series: U32, V29, __, X23, Y20, . . . What number should fill the blank?
- A.W26
- C.Z17
- B.W17
- D.Z26
- Answer & Explanation
- Report
Answer : [A]
Explanation :
Explanation :
| In this series, the letters progress by 1; the numbers decrease by 3. |
4.
Look at this series: 15, __, 27, 27, 39, 39, . . . What number should fill the blank?
- A.51
- C.23
- B.39
- D.15
- Answer & Explanation
- Report
Answer : [D]
Explanation :
Explanation :
| In this simple addition with repetition series, each number in the series repeats itself, and then increases by 12 to arrive at the next number. |
5.
Look at this series: J14, L16, __, P20, R22, . . . What number should fill the blank?
- A.S24
- C.M18
- B.N18
- D.T24
- Answer & Explanation
- Report
Answer : [B]
Explanation :
Explanation :
| In this series, the letters progress by 2, and the numbers increase by 2. |
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