Question

The ratio between the present ages of Ram and Shyam is 1 is to 2 after 10 years the sum of their ages would be twice Shyam's present age how old are that they at present.

Answer 1

$let \: the \: age \: be \: xand2x \\ 2(x + 10) = 2x + 10 \\ 2x + 20 = 2x + 10 \\ x = - 10$