HCF and LCM Online Test 2

Please Wait! Preparing Your Test

Question : 1/20 20 : 00

The simplest form of 561748 is :

A. 1314

B. 1114

C. 2324

D. 34

The H.C.F. of 1485 and 4356 is

A. 189

B. 89

C. 99

D. 83

L.C.M. of 27, 63 and 72 is

A. 1512

B. 1522

C. 1532

D. 1542

The L.C.M. of two numbers is 2310 and their H.C.F. is 30. If one of the numbers is 210, then the other is :

A. 330

B. 1470

C. 2100

D. 16170

The product of two co-primes is 117. Their L.C.M should be

A. 1

B. 117

C. Equal to their H.C.F

D. Cannot be determined

The largest number that divides 210, 315, 147 and 168 exactly, is

A. 3

B. 7

C. 21

D. 4410

H.C.F of (2² x 3³ x 5⁵), (2³ x 3² x 5² x 7) and (2⁴ x 3⁴ x 5 x 11 x 7²) is

A. 180

B. 360

C. 540

D. 1260

The ratio of two numbers is 2 : 3 and their L.C.M. is 150. The numbers are:

A. 30, 40

B. 48, 64

C. 50, 75

D. None of these

The sum of two numbers is 216 and their H.C.F. is 27. The numbers are :

A. 54, 162

B. 108, 108

C. 27, 189

D. None of these

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

A. 4

B. 10

C. 15

D. 16

The least perfect square number which is divisible by 3, 4, 5, 6 and 8 is :

A. 900

B. 1200

C. 2500

D. 3600

Which greatest number will divide 3026 & 5053 leaving remainders 11 & 13 respectively ?

A. 15

B. 30

C. 45

D. 60

Three measuring rods are 64 cm, 80 cm and 96 cm in length. The least length of cloth that can be measured exact number of times, using any of the rods, is :

A. 0.96 m

B. 9.60 m

C. 19.20 m

D. 96 m

What is the least number which when diminished by 5, is divisible by each one of 21, 28, 36, 45 ?

A. 425

B. 1259

C. 1260

D. 1265

The L.C.M of two prime numbers x and y (x > y) is 161. The value of (3y - x) is :

A. –2

B. –1

C. 1

D. 2

About the number of pairs of numbers which have 16 as their H.C.F and 136 as their L.C.M, we can definitely say that :

A. Only one such pair exist

B. Only two such pairs exist

C. Many such pairs exist

D. No such pairs exist

Find the largest natural number which exactly divides the product of any 4 consecutive natural numbers.

A. 24

B. 28

C. 32

D. 36

Which of the following fractions is the largest ?

A. 78

B. 1316

C. 3140

D. 6380

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

A. 0.03

B. 0.9

C. 0.18

D. 0.108

A, B and C start at the same time and walk in same direction around a circle 1 km in circumference at the rates of 10m/min, 20m/min and 40m/min respectively.After what time will they again at the starting point ?

A. 50 min

B. 100 min

C. 240 min

D. 800 min

Feedback

Though extensive care has been taken while generating this test, still if you find any error, you are requested to notify us. Your small gesture will add more value to the questions.

Below each question, you will find button to report an error.

HCF and LCM Online Test 2

Instructions :