Let the ratio of income of Ankit, Sanjay and Roshan is 12x,9x and 7x. The ratio of expenditure of Ankit, Sanjay and Roshan is 15y,9y and 8y. According to the question, 12x−15y=25% of 12x ⇒12x−15y=3x ⇒9x−15y=0 ⇒
x
y
=
5
3
Put in above x=5,y=3 Income of Ankit =12×5=₹60 Income of Sanjay =9×5=₹45 Income of Roshan =7×5=₹35 Expenditure of Ankit =15×3=₹45 Expenditure of Sanjay =9×3=₹27 Expenditure of Roshan =8×3=₹24 The ratio of saving of Ankit, Sanjay and Roshan =(60−45):(45−27):(35−24) =15:18:11