Q.Rotinbabu deposits money for each of his two daughters in such a way that when the ages of each of his daughters will be 18 years each of one will get Rs.1,20,000. The rate of simple interest per annum in the bank is 10% and the present ages of his daughters are 13 years, 8years respectively, let's detemine the money, he had deposited separately in the bank for his daughters.
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for his elder daughter he deposit Rs x
at 10% rate for (18-13)years =5years he get
(x+x.10/100.5)Rs
(x+x/2)Rs=3x/2Rs
3x/2=120000
x=120000×2/3
x=80000
he deposits Rs 80000 for his elder daughter
if he deposit s y Rs for his younger daughter then
(y+y.10/100.10)Rs=2yRs
2y=120000
y=60000
he deposit s Rs 60000 for his younger daughter
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