Question

the two number is 4:5 ratio and their lcm is 180.find the numbers

Answer 1

Let two numbers be 4x and 5x;
their LCM = 180 and HCF = x; Now,
1st number * 2nd number = LCM*HCF
Or, 4x*5x = 180*x;
Or, 20x = 180;
Or, x = 9;
then, the smaller number = 4*9 = 36.

Answer 2

Answer:

Ratio=4:5

=4+5=9

Ist term=4/9×180

=80

2nd term=5/9×180

=100

80 and 100 are the two numbers.