LCM and HCF Quiz

The H.C.F. of two numbers is 12 and their difference is 12. Which of the following can be the numbers?

• 66, 77

• 70, 84

• 94, 108

• 84, 96

• 66, 106

The HCF of two numbers is 29 & their sum is 174. The possible numbers are

• 1,174

• 74,100

• 29, 154

• 29, 145

• None of these

Find the side of the largest square slab which can be paved on the floor of a room 5 meters 44cm long and 3 meters 74 cm broad.

• 56 cm

• 42 cm

• 38 cm

• 34 cm

• 48 cm

The product of two numbers is 6760 and their H.C.F. is 13. How many such pairs can be formed?

• 0

• 3

• 4

• 1

• 2

Least perfect cube which is divisible by 2, 3, 4 and 6 is

• 360

• 216

• 512

• 1728

• 120

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

• 900

• 1200

• 2500

• 3600

• 1600

A room is 4 mts 37 cm long and 3 mts 23 cm broad. The floor needs to be paved with a minimum number of square slabs. Find the least number of slabs required for this purpose.

• 485

• 431

• 391

• 381

• 415

Find the greatest number which will divide 3959, 4082 and 4164 leaving the same remainder in each case.

• 30

• 45

• 41

• 43

• 47

Find the greatest number which will divide 1063 and 1403 leaving the remainder 9 in each case.

• 48

• 34

• 40

• 42

• 36

A merchant has three different types of milk- 324 litres, 351 litres and 459 litres. Find the minimum number of casks of equal size that can store the milk without mixing.

• 17

• 61

• 42

• 45

• 51