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Quantitative Analysis

Study Notes and Chapters for Quantitative Analysis - Online Preparation for Bank Exams

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Quantitative Analysis requires a lot of practice and hardwork since its an analytical subject. Before becoming an expert one should understand the basics of Quantitative Analysis for Government Bank Job Exams for SBI, RBI, RRB and IBPS. This section gives you all details about the basics of Quantitative Analysis. Here you can get the Free Notes and PDF downloads for Quantitative Analysis to prepare for the Bank PO and Clerical Jobs in India. Our experts are available incase you need any kind of online help to understand any topic or any kind of doubt clearing

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Quantitative Aptitude Free-Study Notes

16. COMPOUND INTEREST

A. Compound Interest: Sometimes it so happens that the borrower and the lender agree to fix up a certain unit of time, say yearly or half-yearly or quarterly to settle the previous account. In such cases, the amount after first unit of time becomes the principal for the second unit,the amount after second unit becomes the principal for the third unit and so on.

B. After a specified period, the difference between the amount and the money borrowed is called the Compound Interest (abbreviated as C.I.) for that period.

Let Principal = P, Rate = R% per annum, Time = n years.

C. When interest is compound Annually:
Amount = P(1+R/100)n

D. When interest is compounded Half-yearly:
Amount = P[1+(R/2)/100]2n

E. When interest is compounded Quarterly:
Amount = P[ 1+(R/4)/100]4n

F. When interest is compounded AnnuaI1y but time is in fraction, say 3(2/5) years.
Amount = P(1+R/100)3 x (1+(2R/5)/100)

G. When Rates are different for different years, say Rl%, R2%, R3% for 1st, 2nd and 3rd year respectively.
Then, Amount = P(1+R1/100)(1+R2/100)(1+R3/100)

H. Present worth of Rs.x due n years hence is given by : Present Worth = x / (1+(R/100))n

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