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1
_____ is the only even prime number.
12
16
2
8
6 is a composite number as it has ______________ factors.
3
4
Which of the following numbers are co- prime?
13,26
8,20
31,59
35,85
The difference between a 2- digit number and the number obtained by reversing the digit is 27.The difference between the two digit of that number is _____________
5
What does the literal (c) in the general form represents for the number 392
90
9
6
The difference between a 2- digit number and the number obtained by reversing the digit is 45 .The difference between the two digit of that number is _______________.
7
Choose the odd number from the following numbers.
5656, 656, 5556, 6665
5656
656
5556
6665
The smallest prime number is ________
A pair of prime numbers whose difference is 2 are called ____________________.
Prime Numbers
Co-Prime Numbers
Twin Prime Numbers
All of these
10
Which of the following statement is false?
(i) An even number is always divisible by 3.
(ii) Even numbers leaves remainder 0 when divided by 2.
(iii) Product of two even numbers is always even.
(i), (ii)
(ii),(iii)
(i)
(iii)
11
Which of the following is/ are a twin primes pairs:
(11,13) and (17,19)
(71, 73) and (59, 61)
(29, 31) and (41, 43)
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
13
The sum of the digits of a 2 -digit number is 14. If digits are reversed, the new number decreases by 36 the number is _____________.
78
95
96
14
__________________ 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
None of these
15
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