Question

The hcf and lcm oftwo numbers are 6 and 840 respectively if one of the number is 42 find another number

Answer 1

let the another number be x

HCF=6

LCM=840

The first number =42

the product of two numbers is equal to the product of their HCF and LCM

Hence, 42×x=6×840

42x=5040

x=5040/42

x= 120

hence the another number is 120

mark as brainlist