LCM and HCF Practice Test 5

Let the HCF = x
Then LCM = 30x
LCM + HCF = 3,410
31x = 3,410
x = 110
HCF = 110
LCM = 3,300
Product of both the numbers = HCF × LCM
110 × the other number = 110 × 3,300
So, the other number = 3,300.