REAL NUMBERS

HCF of 8, 9, 25 is

• 8

• 9

• 25

• 1

The product of a rational and irrational number is

• rational

• irrational

• both of above

• none of above

The sum of a rational and irrational number is

• rational

• irrational

• both of above

• none of above

If b = 3, then any integer can be expressed as a =

• 3q,3q+1,3q+2

• 3q

• none of above

• 3q+1

The product of three consecutive positive integers is divisible by

• 4

• 6

• 8

• 10

The set A = {0,1, 2, 3, 4, …} represents the set of

• whole numbers

• natural numbers

• even numbers

• odd numbers

Which number is divisible by 11?

• 1416

• 1452

• 1564

• 1122

LCM of the given number ‘x’ and ‘y’ where y is a multiple of ‘x’ is given by

• x

• y

• xy

• x/y

The largest number that will divide 398,436 and 542 leaving remainders 7,11 and 15 respectively is

• 17

• 11

• 13

• 35

For some integer p, every even integer is of the form

• 2p+1

• 2p

• 2p-1

• none of above