Question

Mrs Rane gives 0.025 part of her salary as pocket money to her son Vinod every month . Vinod spends 0.8 part of his pocket money and saves the rest, if he saves rupees 277.50 in 3 months. how much does Mrs Rane earns in a month

Answer 1

let x be the amount of salary of Mrs. Rane
0.025*x given to her son
0.8 * 0 025*x spent and rest of the amount saved
hence, 0.2*0 025*x*3=277.50
x=18500
Mrs.Rane's salary is Rs. 18500/-