Question

sonal'S mother is thrice as old as sonal. After 10 years, she will be just twice as old as her daughter. what are their present ages?

Answer 1

sonal is 10
her mother is 30

Answer 2

let soanal's mother age be x and her be y

case1 x=3y 
           x-3y=0          ........eq1
after 10 years
case2 x+10=2(y+10)
           x+10=2y+20
          x-2y=10               ..........eq2      
eq1-2
x-3y-x+2y=0-10
-y=-10
y=10

x=3y
x=30
 sonal's mother age =30 and sonal's ge =10