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Education and Career Forum
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| 26th September 2013 05:33 PM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? 137 276=435 then 731 672=????? |
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| 25th February 2013 12:26 AM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? I'm not having any friend who studies in TIME institute to get TIME study material . Can some one help me to get those material to learn shortcuts for aptitude. Thanks in advance |
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| 29th July 2012 09:55 PM | ||
| samatha89 |
Re: Shortcuts to solve quantitative aptitude questions? there is no shortcut of success . because practice makes a man perfect . i will suggets you 2 books of aptitude i.e. 1) R S AGGARWAL 2) ABHIJIT GUHA |
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| 16th May 2012 04:17 PM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? SIR PLZ SEND ME THE SHORTCUT OF QUANTI.... |
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| 9th January 2012 01:59 PM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? can somebody help in how to make calculations very fast are threre any shorcuts for that? like 2/3 6*8-9 other than bodmas |
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| 16th September 2011 09:57 AM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? Quote:
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| 5th September 2011 11:56 PM | ||
| sandipk |
Re: Shortcuts to solve quantitative aptitude questions? hello friend, there is no such shortcut to achieve goal, and like success and for problem also.. however to solve it , you must slove more problm as possible , then you can get your problem solving ability and, the most thing is time management.. so keep in mind these 2 things:you can solve it quickly... you ll get your own short cut also. good Luck~~~~ |
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| 5th September 2011 05:19 PM | ||
| Tulasinagababu |
Re: Shortcuts to solve quantitative aptitude questions? 1. A number is divisible by 2, if its units place digit is 0, 2, 4, or 8 2. A number is divisible by 3, if the sum of its digits is divisible by 3 3. A number is divisible by 4, if the number formed by its last two digits is divisible by 4 4. A number is divisible by 8, if the number formed by its last three digits is divisible by 8 5. A number is divisible by 9, if the sum of its digits is divisible by 9 6. A number is divisible by 11, if, starting from the RHS, (Sum of its digits at the odd place) (Sum of its digits at even place) is equal to 0 or 11x 7. (a + b)2 = a2 + 2ab + b2 8. (a - b)2 = a2 - 2ab + b2 9. (a + b)2 - (a - b)2 = 4ab 10. (a + b)2 + (a - b)2 = 2(a2 + b2) 11. (a2 b2) = (a + b)(a - b) 12. (a3 + b3) = (a + b)(a2 - ab + b2) 13. (a3 b3) = (a - b)(a2 + ab + b2) 14. Results on Division: Dividend = Quotient Χ Divisor + Remainder 15. An Arithmetic Progression (A. P.) with first term a and Common Difference d is given by: [a], [(a + d)], [(a + 2d)], , [a + (n - 1)d] nth term, Tn = a + (n - 1)d Sum of first n terms, Sn = n/2 (First Term + Last Term) 16. A Geometric Progression (G. P.) with first term a and Common Ratio r is given by: a, ar, ar2, ar3, , arn-1 nth term, Tn = arn-1 Sum of first n terms Sn = [a(1 - rn)] / [1 - r] 17. (1 + 2 + 3 + + n) = [n(n + 1)] / 2 18. (12 + 22 + 32 + + n2) = [n(n + 1)(2n + 1)] / 6 19. (13 + 23 + 33 + + n3) = [n2(n + 1)2] / 4 114 Handy Formulae for Quantitative Aptitude Problems Author: Sagar Sonker Page 3 of 12 Copyright © 2006 www.sonker.com H.C.F & L.C.M of Numbers 20. Product of two numbers = Their H. C. F. Χ Their L. C. M. Surds & Indices 21. am Χ an = a(m + n) 22. am / an = a(m - n) 23. (ab)m = ambm 24. (a / b)m = an / bn 25. a0 = 1 26. = a1/n 27. = (a1/n)n = a 28. = 29. = / 30. ( )m = 31. = Percentage 32. To express x% as a fraction, we have x% = x / 100 33. To express a / b as a percent, we have a / b = (a / b Χ 100) % 34. If A is R% more than B, then B is less than A by OR If the price of a commodity increases by R%, then the reduction in consumption, not to increase the expenditure is {100R / [100 + R] } % 35. If A is R% less than B, then B is more than A by OR If the price of a commodity decreases by R%, then the increase in consumption, not to increase the expenditure is {100R / [100 - R] } % 36. If the population of a town is P in a year, then its population after N years is P (1 + R/100)N 114 Handy Formulae for Quantitative Aptitude Problems Author: Sagar Sonker Page 4 of 12 Copyright © 2006 www.sonker.com 37. If the population of a town is P in a year, then its population N years ago is P / [(1 + R/100)N] Profit & Loss 38. If the value of a machine is P in a year, then its value after N years at a depreciation of R p.c.p.a is P (1 - R/100)N 39. If the value of a machine is P in a year, then its value N years ago at a depreciation of R p.c.p.a is P / [(1 - R/100)N] 40. Selling Price = [(100 + Gain%) Χ Cost Price] / 100 = [(100 - Loss%) Χ Cost Price] / 100 Ratio & Proportion 41. The equality of two ratios is called a proportion. If a : b = c : d, we write a : b :: c : d and we say that a, b, c, d are in proportion. In a proportion, the first and fourth terms are known as extremes, while the second and third are known as means. 42. Product of extremes = Product of means 43. Mean proportion between a and b is 44. The compounded ratio of the ratios (a : b), (c : d), (e : f) is (ace : bdf) 45. a2 : b2 is a duplicate ratio of a : b 46. : is a sub-duplicate ration of a : b 47. a3 : b3 is a triplicate ratio of a : b 48. a1/3 : b1/3 is a sub-triplicate ratio of a : b 49. If a / b = c / d, then, (a + b) / b = (c + d) / d, which is called the componendo. 50. If a / b = c / d, then, (a - b) / b = (c - d) / d, which is called the dividendo. 51. If a / b = c / d, then, (a + b) / (a - b) = (c + d) / (c - d), which is called the componendo & dividendo. 52. Variation: We say that x is directly proportional to y if x = ky for some constant k and we write, x α y. 53. Also, we say that x is inversely proportional to y if x = k / y for some constant k and we write x α 1 / y. 114 Handy Formulae for Quantitative Aptitude Problems Author: Sagar Sonker Page 5 of 12 Copyright © 2006 www.sonker.com Partnership 54. If a number of partners have invested in a business and it has a profit, then Share Of Partner = (Total_Profit Χ Part_Share / Total_Share) Chain Rule 55. The cost of articles is directly proportional to the number of articles. 56. The work done is directly proportional to the number of men working at it. 57. The time (number of days) required to complete a job is inversely proportional to the number of hours per day allocated to the job. 58. Time taken to cover a distance is inversely proportional to the speed of the car. Time & Work 59. If A can do a piece of work in n days, then As 1 days work = 1/n. 60. If As 1 days work = 1/n, then A can finish the work in n days. 61. If A is thrice as good a workman as B, then: Ratio of work done by A and B = 3 : 1, Ratio of times taken by A & B to finish a work = 1 : 3 Pipes & Cisterns 62. If a pipe can fill a tank in x hours and another pipe can empty the full tank in y hours (where y > x), then on opening both the pipes, the net part of the tank filled in 1 hour is (1/x 1/y) Time And Distance 63. Suppose a man covers a distance at x kmph and an equal distance at y kmph, then average speed during his whole journey is [2xy / (x + y)] kmph Trains 64. Lengths of trains are x km and y km, moving at u kmph and v kmph (where, u > v) in the same direction, then the time taken y the over-taker train to cross the slower train is [(x + y) / (u - v)] hrs 65. Time taken to cross each other is [(x + y) / (u + v)] hrs 66. If two trains start at the same time from two points A and B towards each other and after crossing they take a and b hours in reaching B and A respectively. 114 Handy Formulae for Quantitative Aptitude Problems Author: Sagar Sonker Page 6 of 12 Copyright © 2006 www.sonker.com Then, As speed : Bs speed = ( : ). 67. x kmph = (x Χ 5/18) m/sec. 68. y metres/sec = (y Χ 18/5) km/hr. Boats & Streams 69. If the speed of a boat in still water is u km/hr and the speed of the stream is v hm/hr, then: Speed downstream = (u + v) km/hr. Speed upstream = (u - v) km/hr. 70. If the speed downstream is a km/hr and the speed upstream is b km/hr, then: Speed in still water = ½ (a + b) km/hr. Rate of stream = ½ (a - b) km/hr. |
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| 5th September 2011 05:14 PM | ||
| nitz90 |
Re: Shortcuts to solve quantitative aptitude questions? Quote:
for multiplication for squaring for factorials and many many more things..i am sure this will help you.. |
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| 5th September 2011 11:53 AM | ||
| pradeepa186 |
Re: Shortcuts to solve quantitative aptitude questions? thanks for the attachments,it is very usefull.. |
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| 5th September 2011 11:51 AM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? thanks for the attachments its very usefull and truely informative.. |
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| 5th September 2011 11:49 AM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? thanks a lot for the attachments..its very usefull.. |
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| 14th August 2011 02:39 PM | ||
| SSsurya |
Re: Shortcuts to solve quantitative aptitude questions? thanx to this website who helped me in getting out of my problems with d shortcuts specially in aptit nd reasoning |
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| 11th August 2011 01:14 PM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? Some children goto ice-cream shop. 9 flavours are available there. Each child takes a cone with two different flavours. No two children take same combination and they have taken all such possible combinations. How many children went to ice cream shop? |
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| 10th August 2011 09:31 PM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? sir i cant afford to go for cat coachng.i m gng to prepare at home.sugst frm where to?i have time books and quantum cat.any book u sugst fr english.i have rs agrwal apti and verbal nd non verbal also.m bit good at apti also.do reply |
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| 7th August 2011 12:03 PM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? how many days needed to work for solving aptitude questions |
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| 25th June 2011 12:35 PM | ||
| greatindiamahesh502 |
Re: Shortcuts to solve quantitative aptitude questions? i suggest u to collect material of T.I.M.E institute from ur friends who have attended for CAT or I.CET coaching......which contains wide variety of shortcuts.. |
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| 25th June 2011 12:32 PM | ||
| greatindiamahesh502 |
Re: Shortcuts to solve quantitative aptitude questions? i suggesst u to collect T.I.M.E institute material from ur friends who have attended for I.CET or CAT coaching which contains wide variety of shortcuts which help us to solve problms in a shorttime |
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| 25th June 2011 12:27 PM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? i suggest u to collect the T.I.M.E institute material from any of ur friends.....which provides wide variety of shortcuts...whch help us to solve problms in a short time... |
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| 11th March 2011 12:34 PM | ||
| Unregistered |
Re: Shortcuts to solve quantitative aptitude questions? I need some short cuts and easy tricks to solve quantitative aptitude questions can you please send thanks |
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| 7th March 2011 12:52 PM | ||
| harshhunny |
Re: Shortcuts to solve quantitative aptitude questions? there is no shortcut of success . because practice makes a man perfect . i will suggets you 2 books of aptitude i.e. 1) R S AGGARWAL 2) ABHIJIT GUHA also , i am attaching some study materials |
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| 16th October 2010 09:26 PM | ||
| renumurali |
Shortcuts to solve quantitative aptitude questions? I need some short cuts to solve quantitative aptitude question can you please send thanks |
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