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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" target="right"><strong>Decimal Fractions</strong></a></TR><br><TR><a href="simplification.html"><strong>Simplification</strong></a></TR><br><TR><a href="squareandcuberoot.html" target="right"><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" target="right"><strong>Percentage</strong></a></TR><br><TR><a href="profitandloss.html" target="right"><strong>Profit and Loss</strong></a></TR><br><TR><a href="ratioandproportion.html" target="right"><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" target="right"><strong>Time and Work</strong></a></TR><br><TR><a href="pipesandcisterns.html" target="right"><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" target="right"><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" target="right"><strong>Simple Interest</strong></a></TR><br><TR><a href="CI.html" target="right"><strong>Compound Interest</strong></a></TR><br><TR><a href=""><strong>Logorithms</strong></a></TR><br><TR><a href="areas.html" target="right"><strong>Areas</strong></a></TR><br><TR><a href="volume.html" target="right"><strong>Volume and Surface area</strong></a></TR><br><TR><a href="races.html" target="right"><strong>Races and Games of Skill</strong></a></TR><br><TR><a href="calendar.html" target="right"><strong>Calendar</strong></a></TR><br><TR><a href="clocks.html" target="right"><strong>Clocks</strong></a></TR><br><TR><a href="" target="right"><strong>Stocks ans Shares</strong></a></TR><br><TR><a href="true.html" target="right"><strong>True Discount</strong></a></TR><br><TR><a href="banker1.html" target="right"><strong>Bankers Discount</strong></a></TR><br><TR><a href="oddseries.html" target="right"><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" target="right" ><strong>Permutations and Combinations</strong></a></TR><br><TR><a href="pinkivijji_puzzles.html" target="right"><strong>Puzzles</strong></a></TR></table></TD><TD valign="top"><a href="oddseries.html"><strong>BACK</strong></a> <h2 ><u><b>ODD MAN OUT & SERIES</b></u></h2><h3><b><i><u>EXAMPLE PROBLEMS:</u></i></b></h3> <pre> 13.Find the odd one out. 2,5,10,50,500,5000 SOLUTION: In the above series,the pattern as follows: 1st term * 2nd term = 3rd term 2nd term * 3rd term = 4th term 3rd term * 4th term = 5th term But 50*500=25000 which is not equal to 5000. so 5000 is odd one. 14.Find the odd one out. 582,605,588,611,634,617,600 SOLUTION: In the above series, alternatively 23 is added and 17 is subtracted from the terms. So 634 is odd one. 15.Find the odd one out. 46080,3840,384,48,24,2,1 SOLUTION: In the above series,the terms are successively divided by 12,10,8,6,..... so 24 is not in this pattern. so 24 is odd one. 16.Find the odd one out. 5,16,6,16,7,16,9 SOLUTION: In the above series,the terms at odd places are 5,6,7,8.......and at even places is 16. So 9 is odd one. 17.Find the odd one out. 6,13,18,25,30,37,40 SOLUTION: In the above series,the difference between two successive terms from the beginning are 7,5,7,5......... so 40 is odd one. 18.Find the odd one out. 56,72,90,110,132,150 SOLUTION: The above series as follows: 7*8,8*9,9*10,10*11,11*12,12*13. So it will be 56,72,90,110,132,156 so 150 is wrong. 19.Find the odd one out. 1,2,6,15,31,56,91 SOLUTION: Add 1square ,2square ,....,6square to the terms. so 91 is wrong. 20.Find the odd one out. 105,85,60,30,0,-45,-90 SOLUTION: Subtract 20,25,30,35,40,45 from the terms. So 0 is odd one. 21.Find out the odd one out. 3,10,21,36,55,70,105 SOLUTION: The pattern in the series is 1*3, 2*5, 3*7, 4*9, 5*11, 6*13, 7*15. So the series will be 3,10,21,36,55,78,105. So 70 is wrong term in the series. 22.Find out the odd one out. 4,9,19,39,79,160,319 SOLUTION: Double the number and add 1 to it. So the series will be 4,9,39,79,159,319. So 160 is wrong. 23.Find out the odd one out. 10,14,28,32,64,68,132. SOLUTION: Alternatively add 4 and double the next term. So 132 is wrong.</pre></TD></TR></table></body></html>⌨️ 快捷键说明
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