HCF & LCM _ Reasoning

Answer explanation

Answer : C

Find the least number which is exactly divisible by 12, 15 and 20 ?

• 40

• 50

• 60

• 80

The product of two numbers is 4107 . if the H C F of these numbers is 37, then the greater number is :

• 101

• 107

• 111

• 185

Answer explanation

Answer : 111

The G C D of 1.08, 0.36 and 0.9 is :

• 0.03

• 0.9

• 0.18

• 0.108

Answer explanation

Answer : 0.18

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8, 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

• 4

• 10

• 15

• 16

Answer explanation

Answer : 16

The H C F of two numbers is 11 and their L C M is 7700. if one of the numbers is 275, then the other is :

• 279

• 283

• 308

• 318

Answer explanation

Answer : 308

Find H C F of 0.63 and 1.05

• 0.21

• 0.28

• 0.56

• 0.84

The H C F of the two numbers is 29 & their sum is 174. What are the numbers ?

• 30 and 150

• 40 and 160

• 28 and 145

• 29 and 145

Find the greatest number that will divide 43, 91 and 183 so as to leave the same remainder in each case.

• 4

• 7

• 9

• 13

Answer explanation

Answer : 4

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

• 40

• 80

• 120

• 200

Answer explanation

Answer : 40