EXAMSPIRE

Types of sitting arrangements Usually three type of sitting arrangement questions are asked in competitive exams like SSC,UPSC,IBPS,SBI,CAT,MAT etc.. Circular Arrangement Rectangular/square Arrangement Linear Arrangement Here we are sharing simplest method to solve sitting arrangement questions in competitive exams. Circular Sitting Arrangement In this arrangement persons are seated around a circle ,either facing the centre or away from the the centre.When everyone facing the centre of circle then,the clockwise movement is the left direction and anticlockwise movement is the right direction. When everyone facing away from centre then,the clockwise movement is right direction and anticlockwise movement is the left direction. In some questions, some persons will be facing centre and others facing away from centre.In such cases, right and left of each person should be marked individually. Rectangular/Square Sitting Arrangement In this arrangement persons are sea...

Coding and Decoding Questions with Answers Coding and decoding is an important reasoning topic for most of the government competitive exams like I BPS,SSc CGL,SSC CHSL,RRB,RBI,SBI written examinations. In this page you can find Coding and Decoding important short cuts and tricks as well as coding and decoding practice questions with solution. We have tried to cover important coding and decoding test questions that are asked in SSC,UPSC,IBPS,RRB exams. We have used easiest shortcut methods and tricks for solving coding and decoding questions . Definition of  Coding and Decoding Coding: Coding is the process of converting a piece of information into another form of representation through symbols. Decoding :It is the reverse process of coding by which coded data is converted back into original information. Classification of Coding and Decoding Letter Coding Number Coding Substitution Coding Deciphering Coding Symbol Coding Letter Coding and Decoding In this type ...

Age Related Problems-Important point You can easily solve age related questions if you know how to solve linear equations.We are sharing some shortcut formulas for solving age related problems faster in competitive exams. If present age of a person is x ,then age of that person n years ago is x-y and age after n years will be x+n . The present ages of A and B are x and y respectively.If A is n times older than B,then x=ny .If A is n years older than B,then x=y+n . If the product of the present ages of A and B is x years and ratio of the present ages of A and B is a:b.Then, Age of A=a*sqrt(x/ab)                                                                                                              ...

Relation between time distance and speed  Relation between time distance and speed  is given by the equations Speed=Distance/Time           or Distance=Speed*Time           or Time=Distance/Speed Unit of speed is km/hr or m/s If speed is given in km/hr,then inorder to convert it  in to m/s multiply by 5/18 1km/hr=5/18m/s If speed is given in m/s,then inorder to convert it  in to km/hr multiply by 18/5 Ratio of speed If ratio of speed of two moving object is a:b, then ratio between times taken for covering same distance is b:a.  If two objects A and B moving in opposite direction from two different places reach at common point in t1 and t2 hrs respectively ,Then Speed of A:Speed of B=sqrt(t2/t1) Average speed  average speed=total distance/total time taken. If a moving object covers a certain distance with a speed of x km/hr and again covers same distance with a speed of ykm/h...

Pipe and cistern important shortcut formulas 1.If two pipes A and B A can fill a tank in x hrs and B can fill the same tank in y hrs If both pipes are opened simultaneously ,then time taken to fill the tank is Work done by both pipes together in 1hr=1/x +1/y 2.If two pipes A and B A can fill a tank in x hrs and B can empty the same tank in y hrs If both pipes are opened simultaneously ,then time taken to fill the tank is = Work done by both pipes together in 1hr=1/x -1/y 3.If three pipes A ,B and C A can fill a tank in x hrs,B can fill the same tank in y hr,and C takes z hrs for filling the same tank. If three pipes are opened simultaneously ,then time taken to fill the tanks is Work done by three pipes together in 1hr=1/x +1/y +1/z 4.If A can fill a tank in x hrs,B can fill the same tank in y hr and C takes z hrs for emptying the same tank. If three pipes are opened simultaneously time taken to fill the tank is= Work done by three pipes together in...

Important points and formulas Cost price(C.P)is the price at which a particular article is bought.  Selling price(S.P) is that price at which a particular item is sold.  Profit=S.P - C.P  Loss =C.P- S.P  Profit%=(profit*100)/C.P  Loss%=(loss*100)/C.P  the profit or loss percentage is always calculated based on C.P  The overhead expenses are added to C.P.  If A sold an article at a profit R1% to B.B sold it to C at a profit of R2% and C sold it to D at a profit of R3%.Then money spent by D for buying article C.P of D = C.P of A * (1+ R1/100)(1+ R2/100)(1+ R3/100).  If there are two successive profits (R1% and R2%) obtained on an article then total profit%=(R1+R2+ R1R2/100).  If a seller mark P% above cost price and gives a discount of Q%,the final Profit/loss %=P-Q-(PQ/100).  Discount percentage is calculated on the marked price(M.P)  Discount%= (Discount/M.P)*100  Cost Price= [(100+Gain%)/(100-Discount%...

Basic point to remember while solving work and time problems First of all work done in 1 day is calculated.If a person completes a work in x days,then Work done by that person in one day is 1/x. Solving work and time problems-some useful tips If the number of persons doing a piece of work is increased(or decreased) in a certain ratio,the time needed to do the same work will be decreased(increased) in the same ratio. If the number of men do a certain work be changed in the ratio m:n, then the ratio of time taken to finish the work changes i the ratio n:m. If A is twice as good as B, then A will take half the time taken by B to complete a certain piece of work. If M1 persons can W1 works in D1 days and M2 persons can do W2 works in D2 days, then we relation between M1,W1,D1,M2,W2 and D2 is M1D1W2=M2D2W1 If a A can do X/Y of work in 1 hr,then he will take Y/X hrs to finish the work. Shortcut formula for solving work and time problems 1.If A can do a work in x days ...

Mixture and alligation(If two commodities are mixed) If two different commodities, one of which is cheaper than the other, are mixed to obtain a new mixture, Cost Price of unit value of this new mixture is called mean price.This is the the first and foremost formula you should remember to solve mixture and alligation questions. Example:A merchant blends two types of rice costing Rs.15 per kg and Rs.20 per kg .In what ratio should these two rice to be mixed so that resulting mixture may cost Rs.16.50 per kg. Note: When water is mixed in milk or any liquid in such away that resulting mixture gives a profit of x% when sold at C.P of milk/liquid. Then ratio of Quantity water:Quantity of milk=x:100 Eg: In what ratio should water be mixed in milk so that seller makes a profit of 10% when mixture is sold at cost price of milk? Water : milk =10:100=1:1 0. Solving mixture and alligation problems (If more than two different commodities are mixed) Example:If A cost 95 per kg,B cost...