3 DS B

find the HCF of 21,15,36

• 3

• 15

• 36

• 6

find the HCF of 16.5,0.45,15

• 15

• 1.5

• 0.15

• 0.015

find the LCM of 12,15,90,108,135,150 is

• 2100

• 2500

• 2700

• 2600

find the LCM of 2.5,5.0,7.5 is

• 15

• 1.5

• 0.15

• 0.015

176 can be expressed as a product of primes as

• 2(2)(2)(2)(12)

• 2(3)(4)(5)(6)

• 2(2)(2)(2)(11)

• 2(2)(3)(12)

thw LCM of two numbers is 60.the numbers are in the ratio 5:6.then the sum of the numbers

• 20

• 33

• 30

• 22

the HCF of two numbers is 13 and their lcm is 65 .if one of the numbers is 5then the other is

• 65

• 169

• 69

• 13

The ratio of two no's is 2:5 and HCF is 7.their LCM

• 35

• 10

• 7

• 70

the least square number which divides 6,9,15,20 is

• 3

• 6

• 5

• 7

Find the largest number of four digits which is exactly divisible by 56,64,72 is

• 8064

• 9999

• 8062

• 8065