The HCF of an even number and an odd number is
(a)1       
(b)  2       
(c)  0       
(d)  non-existant

The HCF of two consecutive even number is (a)1 (b) 2 (c) 0 (d) non-existant

Which of the following statements are true and which are false? The sum of two odd numbers is an odd number. The sum of two odd numbers is an even number. The sum of two even numbers is an even number. The sum of two even numbers is an odd number. The sum of an even number and an odd number is an odd number. The sum of an odd number and an odd number is an even number Every whole number is a natural number. Every whole number is a whole number. There is a whole number which when added to a whole number, gives that number. There is a natural number which when added to a natural number, gives that number. Commutativity and associativity are properties of whole numbers Commutativity and associativity are properties of addition of whole numbers.

The mean of first n odd natural number is (a) (n+1)/2 (b) n/2 (c) n (d) n^2

The HCF of two consecutive natural numbers is (a)0 (b) 1 (c) 2 (d) non-existant

The HCF of two consecutive odd numbers is ............

The product of an odd number and even number is an ............ number.

The sum of three consecutive odd number is 81. The middle number is (a)25 (b) 27 (c)31 (d) 29

The total number of even prime numbers is (a) 0 (b) 1 (c) 2 (d) unlimited

The sum of two consecutive odd number is 36. The larger number is (a)17 (b) 15 (c)19 (d) 21

If the HCF of two numbers is 16 and their product is 3072, then their LCM is (a)182 (b) 192 (c) 12 (d) none of these