Question : The ratio of two numbers is 3 : 4 and their HCF is 5. Their LCM is:

Option 1: 10

Option 2: 60

Option 3: 15

Option 4: 12

Question : The LCM and HCF of the two numbers are 1105 and 5. If the LCM is 17 times the first number, then find the two numbers.

Option 1: 65 and 85

Option 2: 55 and 85

Option 3: 65 and 75

Option 4: 60 and 80

Question : The LCM of two numbers is five times their HCF. If the product of the two numbers is 20480, then find their HCF and LCM, respectively.

Option 1: 46 and 230

Option 2: 48 and 240

Option 3: 64 and 320

Option 4: 56 and 280

Question : The LCM of the two numbers is 840 and their HCF is 7. If one of the numbers is 56, find the other.

Option 1: 120

Option 2: 112

Option 3: 105

Option 4: 84

Question : The ratio of the two numbers is 4 : 5, and their HCF is 3. What is their LCM?

Option 1: 48

Option 2: 80

Option 3: 60

Option 4: 36