Question

the HCF of two numbers is 12 one of the numbers is 84 and their LCM is 924 find the other number

Answer 1

 HCF of two numbers is 12

one of the numbers is 84 

LCM is 924

let other number be x


lets recall a property

lcm * hcf =  product of  2 numbers

924 * 12 = 84 * x

x = 924 * 12/84

x = 924.7

x = 132

:0

Answer 2

product of number=product of hcf and lcm
84×x=12×924
84x=11088
x=11088/84
x=132
the other number is 132