LCM & HCF-3

 What is the L.C.M. of 25, 30, 35 and 40?

• 3800

• 4200

• 4400

• 3200

What is the greatest number which divides 639, 1065 and 1491 exactly?

• 193

• 183

• 223

• 213

What is the H.C.F. of 4/9, 10/21 and 20/63?

• 4/189

• 6/63

• 2/63

• 20/21

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

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

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

• 1,174

• 74,100

• 29,154

• 29,145

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

• 0

• 2

• 4

• 1

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

• 360

• 216

• 512

• 1728

Three bells toll at intervals of 36 sec, 40 sec, and 48 sec respectively. They start singing together at a particular time. When will they toll next together?

• 6 mins

• 12 mins

• 18 mins

• 24 mins

The product of LCM and HCF of two numbers is 48. The difference of two numbers is 8. Find the numbers?

• 1,48

• 6,8

• 3,16

• 4,12