Question

Find two numbers from lcm and hcf and sum

Answer 1

Answer↓

Number-20and 40

LCM
Multiples of 20→20,40,60,80,100,120.....
Multiples of 40→40,80,120,160,200,240...
Common Factors→40,80,120,.....
LCM→40

HCF
Factors of 20→1,2,4,5,10,20
Factors of 40→1,2,4,5,8,10,20,40
Common Factors→1,2,3,4,5,10,20
HCF→20


Sum of two numbers =60
Sum of lcm and hcf of two numbers=60