Hi students, Welcome to Amans Maths Blogs (AMBIPi). Are you preparing for SSC CGL Tier 1 and 2 and looking for SSC CGL Exam Advance Math Number System Question with Solutions AMBIPi? In this article, you will get Previous Year Mathematics Questions asked in SSC CGL Tier 1 and Tier 2, which helps you in the preparation of government job exams of SSC CGL.
SSC CGL Exam Math Number System Question with Solutions
SSC CGL Exam Math Question: 1
Find the unit digit in the product (4387)245 × (621)72
Option A : 1
Option B : 2
Option C : 5
Option D : 7
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Option D: 7
SSC CGL Previous Year Math Questions: 2
The unit digit in 3 × 38 × 537 ×1256 is
Option A : 4
Option B : 2
Option C : 6
Option D : 8
Show/Hide Answer Key
Option D : 8
Unit’s digit in 3 × 38 × 537 ×1256= Unit’s digit in 3 × 8 × 7 × 6
= 4 × 2 = 8
SSC CGL Previous Year Math Paper: 3
By interchanging the digits of a two digit number we get a number which is four times the original number minus 24. If the unit’s digit of the original number exceeds its ten’s digit by 7, then original number is
Option A : 29
Option B : 36
Option C : 58
Option D : 18
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Option A : 29
Let the two–digit number be
10x + y where x < y.
Number obtained on reversing
the digits =10y + x
According to the question,
10y + x = 4 (10x + y) – 24
From equation (ii),
y – 2 = 7 Þ y = 2 + 7 = 9
Number = 10x + y =10 ́2+9= 29
SSC CGL Mock Test Math Question: 4
There is a number consisting of two digits, the digit in the units’ place is twice that in the tens’ place and if 2 be subtracted from the sum of the digits, the difference is equal to 1/6th of the number . The number is
Option A : 26
Option B : 25
Option C : 24
Option D : 23
Show/Hide Answer Key
Option C : 24
Ten’s digit of original number
= x
Unit’s digit = 2x
Number = 10x + 2x = 12x
According to the question,
3x – 2 = 1/6 x 12x = 3x – 2 = 2x
3x – 2x = 2
x = 2
Number = 12x = 12 × 2 = 2 = 24
SSC CGL Free Mock Test Math Question: 5
The sum of three consecutive odd natural numbers is 147. Then, the middle number is
Option A : 47
Option B : 48
Option C : 49
Option D : 51
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Option C : 49
x + x + 2 + x + 4 = 147
3 x + 6 = 147
3 x = 147 – 6 = 141
X = 141/3 = 47
Middle Number
= x + 2 = 47 + 2 = 49
SSC CGL Advance Math Question: 6
The sum of first 20 odd natural numbers is equal to :
Option A : 210
Option B : 300
Option C : 400
Option D : 420
Show/Hide Answer Key
Option D : 5/7
Series of first 20 odd natural numbers is an arithmetic pro-gression with 1 as the first term and the common difference 2.Sum of n terms in arithmetic
progression is given by.
Where a : First term common difference
= 10 [2 + 38]=10 × 40 = 400
Note :Sum of first n consecutive odd numbers = n2
SSC CGL Math Previous Year Question: 7
The sum of all natural numbers from 75 to 97 is
Option A : 1598
Option B : 1798
Option C : 1958
Option D : 1978
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Option D : 1978
Series of all natural numbers
from 75 to 97 is in A.P. whose
first term,
a = 75, last term, l = 97
If number of terms be n, then 23/2 x 172 = 1978
SSC CGL Math Question Paper: 8
The sum of all natural numbers between 100 and 200, which are multiples of 3 is :The least among the fractions 15/16, 19/20, 24/25, 34/35 is
Option A : 5000
Option B : 4950
Option C : 4980
Option D : 4900
Show/Hide Answer Key
Option B : 4950
Numbers divisible by 3 and
lying between 100 and 200 are :
102, 105,….. 198
Let number of terms = n
198 = 102 + (n–1) 3
32/2 (102 + 198 ) = 4950
Advance Math Question Asked in SSC CGL: 9
The sum of the squares of three consecutive natural numbers is 2030. Then, what is the middle number?
Option A : 25
Option B : 26
Option C : 27
Option D : 28
Show/Hide Answer Key
Option B: 26
Required number = x + 1= 25 + 1 = 26
Previous Year Math Question Paper SSC CGL: 10
The sum of three consecutive odd natural numbers is 87. The smallest of these numbers is
Option A : 29
Option B : 31
Option C : 23
Option D : 27
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Option D : 27
Let the three odd consecutive
natural numbers be x, x + 2 and
x + 4.
According to the question
x + x + 2 + x + 4 = 87
or 3x + 6 = 87
or 3x = 81 \ x = 27
Smallest number = 27
SSC CGL Exam Math Number System Question: 11
Sum of three consecutive even integers is 54. Find the least among them.
Option A : 18
Option B : 15
Option C : 14
Option D : 16
Show/Hide Answer Key
Option B : 16
Let three consecutive even
integers be 2x, 2x + 2 and 2x + 4
respectively.
2x + 2x + 2 + 2x + 4 = 54
Þ 6x + 6 = 54
6x = 54 – 6 = 48
x = 8
The least even number
= 2 × 8 = 16
SSC CGL Previous Year Math Number System Questions: 12
The sum of three consecutive numbers is 87. The middle number is
Option A : 27
Option B : 29
Option C : 30
Option D : 28
Show/Hide Answer Key
Option B : 29
Let three consecutive natural
numbers be x, x+1, x+2.
According to the question,
x + x + 1 + x + 2 = 87
Þ 3x + 3 = 87
Middle number = 28 + 1 = 29
SSC CGL Previous Year Math Number System Paper: 13
What is the sum of two consecutive even numbers, the difference of whose square is 84?
Option A : 38
Option B : 34
Option C : 42
Option D : 46
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Option C : 42
The required sum = 20 + 22 = 42
SSC CGL Mock Test Math Number System Question: 14
The sum of first 50 odd natural numbers is
Option A : 1000
Option B : 1250
Option C : 5200
Option D : 2500
Show/Hide Answer Key
Option D : 2500
S = 1 + 3 + 5 + ….. to 50 terms
Here, a = 1
d = 3 – 1 = 2
n = 50 = 25 (2 + 98) = 25 × 100
= 2500
SSC CGL Free Mock Test Math Number System Question: 15
The sum of all the 3-digit numbers, each of which on division by 5 leaves remainder 3, is
Option A : 180
Option B : 1550
Option C : 6995
Option D : 99090
Show/Hide Answer Key
Option D : 99090
According to the question,
First number = a = 103
Last number = l = 998
If the number of such numbers be n, then,
= 90 × 1101 = 99090
SSC CGL Advance Math Number System Question: 16
The sum of all the 3-digit numbers is
Option A : 98901
Option B : 494550
Option C : 8991
Option D : 899
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Option B : 494550
First 3 – digit number = 100
Last 3 – digit number = 999
Number of terms = 900
= 450 × 1099 = 494550
SSC CGL Math Previous Year Number System Question: 17
Out of six consecutive natural numbers, if the sum of first three is 27, what is the sum of the other three ?
Option A : 36
Option B : 35
Option C : 25
Option D : 24
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Option A : 36
x + x + 1 + x + 2 = 27
3x + 3 = 27
3x = 24
x = 8
Three consecutive no’s whose sum is 27 are 8, 9,10. Hence, next 3 consecutive no’s having 36 as sum are 11, 12 and 13
SSC CGL Math Number System Question Paper: 18
The sum of three consecutive odd natural numbers each divisible by 3 is 72. What is the largest among them?
Option A : 21
Option B : 24
Option C : 27
Option D : 26
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Option C : 27
Let the numbers be 3x, 3x +3 and 3x + 6
3x + 3x + 3 + 3x + 6 = 72
Þ 9x + 9 = 72
Þ 9x = 72 – 9 = 63
Largest number
= 3x + 6 = 3 × 7 + 6 = 27
Advance Math Number System Question Asked in SSC CGL: 19
Find the sum of all positive multiples of 3 less than 50
Option A : 400
Option B : 404
Option C : 408
Option D : 412
Show/Hide Answer Key
Option C : 408
Previous Year Math Number System Question Paper SSC CGL: 20
What is the arithmetic mean of first 20 odd natural numbers
Option A : 19
Option B : 17
Option C : 22
Option D : 20
Show/Hide Answer Key
Option D : 4
Sum of first n odd natural numbers = n2 = (20)2 = 400
Required average = 400/20 = 20
