Site navigation

Assume it is the beginning of the year today. Ankita will earn INR 10,000 at the end of the year, which she plans to invest in a bank deposit immediately at a fixed simple interest of 0.5% per…

Question and options

Assume it is the beginning of the year today. Ankita will earn INR 10,000 at the end of the year, which she plans to invest in a bank deposit immediately at a fixed simple interest of 0.5% per annum. Her yearly income will increase by INR 10,000 every year, and the fixed simple interest offered by the bank on new deposits will also increase by 0.5% per annum every year. If Ankita continues to invest all her yearly income in new bank deposits at the end of each year, the total interest earned by her, in INR, in five years from today will be
  1. 1000
  2. 1700
  3. 5250
  4. 2500

Answer and explanation

Correct answer: D - 2500

The total interest is INR 2,500. The first four deposits earn 10000×0.005×4=20010000\times0.005\times4=200, 20000×0.01×3=60020000\times0.01\times3=600, 30000×0.015×2=90030000\times0.015\times2=900 and 40000×0.02×1=80040000\times0.02\times1=800 rupees, respectively. The fifth deposit has just been made at the end of year five, so the four interest amounts give the full total. Applying the initial rate of 0.5% to every deposit gives INR 1,000.

Practice for these exams

  • IPMAT Indore

Related question papers

Related exam syllabi

More solved explanations in Arithmetic