Question

The lady had a certain sum of money with her she gave the half and 1rupee additional to her youngest son she than gave hslf of what was left with her and 2rupees to her second son thereafter she gave half of the sum remaining with 3rupees to her eldest son she found that she was left with Rs 100 how much money did she start with​

Answer 1

let sum of total money be 's'.

money gave to youngest son = 1/2 s+1

money left with her = 1/2 s -1

"" other son = 1/2(1/2 s-1 +2)

= 1/4 s + 1/2

Do the same with 3rd child

and equate money left with 100.