Two numbers are in the ratio 3 : 7. If their L.C.M. is 231. What is sum of the numbers?

Answer 1

The numbers should be 3a:7a
If the numbers are 3a and 7a then 3×7×a=231, a=11.
So the numbers are 33 and 77
And the sum of these numbers = 33 + 77 = 110.