Question 664927
  <pre><font face = "Tohoma" size = 3 color = "indigo"><b> 
Hi,
present age of suman is 25 years less than her mom's age {{{highlight(x)}}}
NOW:
mom is x
suman (x-25)
Question states***  10 years ago...
 x - 10 = 6((x-25)-10)
  x - 10 = 6(x-35)
 x-10 = 6x - 210
   200 = 5x
    40= x, the mother's age now.  suman is 15.

and...10 years ago...
 {{{30 = 6*5}}}