Question

The lcm and hcf of two numbers are 4125 and 25 respectively. If the first number is 375 find by how much is the second number less than the first

Answer 1

factors of 4125 = 5 x 5 x 5 x 3 x 11

Factors of 375 = 5 x 5 x 3

HCF is 25 ie. 5 x5

So the other number = 5 x 5 x 11 = 275

Second number is 375-275 = 100 less than first number