REAL NUMBERS

The HCF of 8, 9,  25 is....

• 1

• 25

• 9

• 8

According to fundamental theorem of Arithmetic 13915 is a...number

• composite

• prime

• irrational

• none of the above

The decimal expansion of 33/20 will terminate after....decimal places

• 1

• 2

• 3

• more than 3

If two positive integers p and q can be expressed as p =ab^2 and q =ab^3, a and b are being prime numbers then HCF of (p, q) is...

• ab

• a^2b

• ab^2

• a^2b^3

According to fundamental theorem of Arithmetic, if p divides b^2 and b is positive ,then

• b divides p

• b^2 divides p

• p divides b

• none

Product of two co-prime numbers is 91. Their LCM....

• 1

• 117

• 7

• 91

The HCF of two numbers is 18 and their product is 12960.Their LCM is...

• 720

• 420

• 600

• 800

The ratio of LCM and HCF of the least composite and least prime number is....

• 2:1

• 1:2

• 1:3

• 1:1

The HCF of two numbers is 8 and their product is 280.Their LCM is...

• 8

• 280

• 35

• 1

For any two integers a and b their LCM X HCF is...

• a

• b

• 1

• ab