One-third of Ratan's investment in National Savings Certificate is equal to one-half of his investment in FDR. If he has Tk. 1,50,000 as total investment. how much he invested in savings certificate?
বিকল্পসমূহ (নিজের উত্তর যাচাই করতে ক্লিক করুন):
সঠিক উত্তর
3 (Tk. 90,000)
বিস্তারিত ব্যাখ্যা ও বিশ্লেষণ:
Solution:
Let saving in N.S.C and P.P.F. be Tk. x and Tk.(150000 - x) respectively
Now
x/3 = (1/2)(150000 - x)
x/3 = 75000 - x/2
(x/3) + (x/2) = 75000
(2x + 3x)/6= 75000
5x/6 = 75000
x = (75000 × 6)/5
x = 90000
