Question: The H.C.F and L.C.M of two numbers are 84 and 21 respectively. If the ratio of the two numbers is 1:4, then the larger of the two numbers is____________?

• 1. 12
• 2. 48
• 3. 84
• 4. 108

Question: Three numbers are in the ratio 3:4:5 and their L.C.M is 2400. Their H.C.F is:

• 1. 40
• 2. 80
• 3. 120
• 4. 200

Question: The L.C.M of two numbers is 48. The numbers are in the ratio 2:3. The sum of numbers is__________?

• 1. 28
• 2. 32
• 3. 40
• 4. 64

Question: Three numbers which are co-prime to each other are such that the product of the first two is 551 and that of the last two is 1073. The sum of the three numbers is________?

• 1. 75
• 2. 81
• 3. 85
• 4. 89

Question: The product of two numbers is 2028 and their H.C.F is 13. The number of such pairs is__________?

• 1. 1
• 2. 2
• 3. 3
• 4. 4

Question: The product of two numbers is 4107. If the H.C.F of these numbers is 37, then the greater number is_________?

• 1. 101
• 2. 107
• 3. 111
• 4. 185

Question: The sum of two numbers is 528 and their H.C.F is 33. The number of pairs of numbers satisfying the above conditions is__________?

• 1. 4
• 2. 6
• 3. 8
• 4. 12

Question: The ratio of numbers is 3:4 and their H.C.F is 4. Their L.C.M is__________?

• 1. 12
• 2. 16
• 3. 24
• 4. 48

Question: Three numbers are in the ratio 1:2:3 and their H.C.F is 12. The numbers are__________?

• 1. 4, 8, 12
• 2. 5, 10, 15
• 3. 10, 20, 30
• 4. 12, 24, 36

Question: The G.C.D of 1.08, 0.36 and 0.9 is________?

• 1. 0.03
• 2. 0.9
• 3. 0.18
• 4. 0.108