Question

The FICF of two numbers is 27 and their LCM is 162 . If one of the number is 81, the other is -
a) 64
b) 72
c) 54
d) 91

Answer 1

Answer:

the other number in this question is 54

Explanation:

HCF=27

LCM=162

a=81

b=?

by using formula,. LCM×HCF=a×b

27×162=81×b

b=(27×162)/81

=54. Answer.

Answer 2

Answer:

54

Explanation:

For two numbers a and b, we know that

(a×b)=HCFof(a,b)×LCMof(a,b)

Here,

a=81,HCF=27,LCM=162

Therefore,

(81×b)=(27×162)

For two numbers a and b, we know that

(a×b)=HCFof(a,b)×LCMof(a,b)

Here,

b=

81

27×162

Hence, the other number is 54.