Question 640343
let reena is x yrs & tina is x+24 at present
10 yrs before
reena was x-10 yrs & tina was x+24-10=x+14 yrs
but x+14=5[x-10]=5x-50
or 4x=50+14=64
or x=16 = reena's age & tina is 40 yrs
ans