Present age of Farzana is thrice the present age of Samira who is How many years ago were the age of Farzana five times that of Samira?
সমাধান
সঠিক উত্তর: Option B
samiras age=20 farzanas age=60 suppose, x years ago farzana was five times of samira according to question, (20-x)5=60-x or,4x=40 or,x=10