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1. Question marks are mentioned with each Question.
2. Please write neat and clean hand-writing on Answer Sheet. Use Margin on right side and left side of Answer Sheet.
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5. This is a ONE TIME attempt test. Once started, it cannot be reversed or attempted again.
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1
1 is neither ______ nor composite.
twin prime
co- prime
odd prime
prime
2
The prime number which comes just after 43 is:
49
45
47
none of these
3
The difference between a 2- digit number and the number obtained by reversing the digit is 18.The difference between the two digit of that number is _____________
5
4
What does the literal (a) in the general form represents for the number 904
9
900
0
Choose the odd number from the following numbers.
5656, 656, 5556, 6665
5656
656
5556
6665
6
__________ has only two factors: 1 and itself.
Prime number
Composite number
Both A and B
None of these
7
Which of the following numbers are co- prime?
13,26
8,20
31,59
35,85
8
How many prime numbers are these between 10 and 20?
The smallest composite number is __________.
10
Find the sum of the values of the literal (b) in the general form represents for the number 904, 326, 984
11
The smallest and largest three digit odd number are __________________
101,997
101, 999
100, 998
101, 998
12
Set the three consecutive prime numbers is called a prime triplets, which of the following is a prime triplet?
2, 4, 5
7, 9, 13
5, 7, 11
2, 3, 8
13
The smallest odd composite number is ___________
14
The sum of the digit of a 2-digit number is 8. If the number obtained by interchanging the digits is 36 more than the original number. Find the number?
26
25
85
56
15
Number of pairs of twin prime numbers between 1 and 50 are ______________
16
__________________ are 5 consecutive composite numbers less than 100 so that there is no prime number between them .
89, 91, 93, 95, 97
90, 92, 94, 96, 98
91, 92, 93, 94, 95
17
Which is the smallest and largest odd prime number in between 24 and 60 ?
27,57
29,57
29,59
27,59
18
The sum of the digit of a 2-digit number is 6. If the number obtained by interchanging the digits is 18 more than the original number. Find the sum of the number and the number obtained after interchange ?
42
66
24
19
The largest 4-digit even number and smallest 4-digit odd number are respectively ____________________
1000 and 9999
9998 and 1001
1001 and 9998
9999 and 1000
20
__________________ are 7 consecutive composite numbers less than 100 so that there is no prime number between them .
90,91, 92, 93, 94, 95, 96
86, 88, 90, 92, 94, 96, 98
91, 92, 93, 94, 95, 97, 99