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<html><table height="500" width="1000" border="2"><TR height="5" width="1000"><strong><center><marquee><font color="Green"><h1>APTITUDE</h1></center></strong></font></TR></marquee><TR><TD align="left" width="200" valign="top"><table><TR><a href="numbers.html"><strong>Numbers</strong></a></TR><br><TR><a href="hcf.html"><strong>H.C.F and L.C.M</strong></a></TR><br><TR><a href="dec.html" ><strong>Decimal Fractions</strong></a></TR><br><TR><a href="simplification.html"><strong>Simplification</strong></a></TR><br><TR><a href="squareandcuberoot.html" ><strong>Square and Cube roots</strong></a></TR><br><TR><a href="average.html" ><strong>Average</strong></a></TR><br><TR><a href="pnumbers.html" ><strong>Problems on Numbers</strong></a></TR><br><TR><a href="problemsonages.html"><strong>Problems on Ages</strong></a></TR><br><TR><a href="surdsandindices.html"><strong>Surds and Indices</strong></a></TR><br><TR><a href="percent.html" ><strong>Percentage</strong></a></TR><br><TR><a href="profitandloss.html" ><strong>Profit and Loss</strong></a></TR><br><TR><a href="ratioandproportion.html" ><strong>Ratio And Proportions</strong></a></TR><br><TR><a href="partnership.html"><strong>Partnership</strong></a></TR><br><TR><a href="chainrule1.html"><strong>Chain Rule</strong></a></TR><br><TR><a href="timeandwork.html" ><strong>Time and Work</strong></a></TR><br><TR><a href="pipesandcisterns.html" ><strong>Pipes and Cisterns</strong></a></TR><br><TR><a href="timeanddistance.html"><strong>Time and Distance</strong></a></TR><br><TR><a href="trains.html" ><strong>Trains</strong></a></TR><br><TR><a href="boats.html"><strong>Boats and Streams</strong></a></TR><br><TR><a href="alligation.html"><strong>Alligation or Mixture </strong></a></TR><br><TR><a href="simple.html" ><strong>Simple Interest</strong></a></TR><br><TR><a href="CI.html"><strong>Compound Interest</strong></a></TR><br><TR><a href=""><strong>Logorithms</strong></a></TR><br><TR><a href="areas.html" ><strong>Areas</strong></a></TR><br><TR><a href="volume.html"><strong>Volume and Surface area</strong></a></TR><br><TR><a href="races.html" ><strong>Races and Games of Skill</strong></a></TR><br><TR><a href="calendar.html" ><strong>Calendar</strong></a></TR><br><TR><a href="clocks.html" ><strong>Clocks</strong></a></TR><br><TR><a href="" ><strong>Stocks ans Shares</strong></a></TR><br><TR><a href="true.html" ><strong>True Discount</strong></a></TR><br><TR><a href="banker1.html" ><strong>Bankers Discount</strong></a></TR><br><TR><a href="oddseries.html"><strong>Oddmanout and Series</strong></a></TR><br><TR><a href=""><strong>Data Interpretation</strong></a></TR><br><TR><a href="probability.html"><strong>probability</strong></a></TR><br><TR><a href="percom1.html" ><strong>Permutations and Combinations</strong></a></TR><br><TR><a href="pinkivijji_puzzles.html" ><strong>Puzzles</strong></a></TR></table></TD><TD valign="top"><a href="CI.html" target="right"><strong>BACK</strong></a><br><br><font size="5"><center><b><u>CONCEPT</u></b></center></font><br><br><font size="4"> <b> Compound Interest:</b>Sometimes it so happens that the borrower and <br>the lender agree to fix up a certain unit of time ,say yearly or half-yearly <br>or quarterly to settle the previous account.<br> In such cases ,the amount after the first unit of time becomes the principal<br> for the 2nd unit ,the amount after second unit becomes the principal for the<br> 3rd unit and so on.<br> After a specified period ,the difference between the amount and the money<br> borrowed is called Compound Interest for that period.<br><br><b>Formulae:</b><br><br><br>Let principal=p,Rate=R% per annum Time=nyears<br><br>1.When interest is compounded Annually,<br> Amount=P[1+(R/100)]n<br>2.When interest is compounded Halfyearly,<br> Amount=P[1+((R/2)100)]2n<br>3.When interest is compounded Quaterly,<br> Amount=P[1+((R/4)100)]4n<br>4.When interest is compounded Annually,but time in fractions say 3 2/5 yrs<br> Amount=P[1+(R/100)]3[1+((2R/5)/100)]<br>5.When rates are different for different years R1%,R2%,R3% for 1st ,2nd ,<br>3rd yrs respectively<br> Amount=P[1+(R1/100)][1+(R2/100)][1+(R3/100)]<br>6.Present Worth of Rs.X due n years hence is given by <br> Present Worth=X/[1+(R/100)]n<br> <font size="3"><a href="CI.html" target="right"><strong>BACK</strong></a></font></font></TD></TR></table></html>⌨️ 快捷键说明
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