Question

mr.ramesh gives 10% of sum amount to his wife and 10% of the remaining to hospital expenses and again 10% of the remaining amount to the charity then he has only rs.7290 with him. what is the initial sum of money ramesh has ?​

Answer 1

Answer:

let, The initial sum of money =X

remaining amount =7290

X×(1-10/100)×(1-10/100)×(1-10/100)=7290

X×(0.9)^3=7290

X=7290/0.7290=10000.ans