Number System Question 1
Questions by Rejinpaul.com
1. 2, 1, (1/2), (1/4), ... What number should come next?
a)(1/3)
b)(1/8)
c)(2/8)
d) (1/16)
The Correct Answer is:
b)(1/8)
Explanation:
This is a simple division series; each number is one-half of the previous number.
In other terms to say, the number is divided by 2 successively to get the next
result.4/2 = 2
2/2 = 1
1/2 = 1/2
(1/2)/2 = 1/4
(1/4)/2 = 1/8
and so on.
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2. 58, 52, 46, 40, 34, ... What number should come next?
a)26
b)28
c)30
d)32
The Correct Answer is:
b)28
Explanation:
This is a simple subtraction series. Each number is 6 less than the previous number
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3. 8, 22, 8, 28, 8, ... What number should come next?
a)9
b)29
c) 32
d) 34
The Correct Answer is:
d) 34
Explanation:
This is a simple addition series with a random number, 8, interpolated as every
other number. In the series, 6 is added to each number except 8, to arrive at
the next number.
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4. 31, 29, 24, 22, 17, ... What number should come next?
a)15
b)14
c)13
d) 12
The Correct Answer is:
a) 15
Explanation:
This is a simple alternating subtraction series, which subtracts 2, then 5.
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5. 2, 4, 6, 8, 10, ... What number should come next?
a)11
b)12
c)13
d) 14
The Correct Answer is:
b)12
Explanation:
This is a simple addition series. Each number increases by 2.
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6. 201, 202, 204, 207, ... What number should come next?
a) 205
b)208
c)210
d) 211
The Correct Answer is:
d) 211
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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7. 544, 509, 474, 439, ... What number should come next?
a) 404
b)414
c)420
d) 445
The Correct Answer is:
a) 404
Explanation:
This is a simple subtraction series. Each number is 35 less than the previous
number.
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8. 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
The Correct Answer is:
c)4.7
Explanation:
In this simple addition series, each number increases by 0.8.
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9.28 25 5 21 18 5 14
a)11 5
b)10 7
c)11 8
d) 5 10
The Correct Answer is:
a)11 5
Explanation:
This is an alternating subtraction series with the interpolation of a random number
,5, as every third number. In the subtraction series, 3 is subtracted, then 4, then 3,
and so on.
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10. 2 8 14 20 26 32 38
a)2 46
b)44 50
c)42 48
d) 40 42
The Correct Answer is:
b)44 50
Explanation:
This is a simple addition series, which begins with 2 and adds 6.
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11. 9 11 33 13 15 33 17
a)19 33
b) 33 35
c) 33 19
d)15 33
The Correct Answer is:
a)19 33
Explanation:
In this alternating repetition series, a random number, 33, is interpolated every
third number into a simple addition series, in which each number increases by 2.
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12. 40 40 31 31 22 22 13
a)13 4
b) 13 5
c) 4 13
d) 9 4
The Correct Answer is:
a)13 4
Explanation:
This is a subtraction series with repetition. Each number repeats itself and then
decreases by 9.
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13. 6 10 14 18 22 26 30
a)36 40
b) 33 37
c) 38 42
d) 34 38
The Correct Answer is:
d) 34 38
Explanation:
This simple addition series adds 4 to each number to arrive at the next.
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14. 3 5 35 10 12 35 17
a) 22 35
b) 35 19
c)19 35
d) 19 24
The Correct Answer is:
c)19 35
Explanation:
This is an alternating addition series, with a random number, 35, interpolated as
every third number. The pattern of addition is to add 2, add 5, add 2, and so on.
The number 35 comes after each "add 2" step/
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15. 32 31 32 29 32 27 32
a) 25 32
b)31 32
c)29 32
d) 25 30
The Correct Answer is:
a) 25 32
Explanation:
This is an alternating repetition series. The number 32 alternates with a series in
which each number decreases by 2.
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16. 34 30 26 22 18 14 10
a) 8 6
b)6 4
c) 14 18
d) 6 2
The Correct Answer is:
d) 6 2
Explanation:
This is a simple subtraction series, in which 4 is subtracted from each number to
arrive at the next.
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17. VI, 10, V, 11, __, 12, III, ... What number should fill the blank?
a)II
b)IV
c) IX
d) 14
The Correct Answer is:
b)IV
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.
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18. J14, L16, __, P20, R22, ... What number should fill the blank?
a)S24
b)N18
c) M18
d) T24
The Correct Answer is:
b)N18
Explanation:
In this series, the letters progress by 2, and the numbers increase by 2.
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19. 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
The Correct Answer is:
c) 0.6
Explanation:
This is a simple multiplication series. Each number is 2 times greater than the previous number.
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20. U32, V29, __, X23, Y20, ... What number should fill the blank?
a) W26
b)W17
c) Z17
d)Z26
The Correct Answer is:
a) W26
Explanation:
In this series, the letters progress by 1; the numbers decrease by 3.
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