The Satisfaction Academy

PROFIT & LOSS SHORTCUTS FOR QUANTITATIVE APTITUDE 1. Profit = Selling Price - Cost price 2. Selling Price = Cost Price + Profit 3. Cost Price = Selling Price - Profit 4. Loss = Cost Price - Selling Price 5. Selling Price = Cost Price - Loss 6.Cost price = Selling Price + Loss 7. Percentage profit / loss is always calculated on CP unless otherwise stated. 8. Profit Percentage = (Profit x 100) / CP 9. Loss Percentage = (Loss x CP) / CP 10. Selling Price = {[(100+ Gain %) x CP] / 100} 11. Selling Price = {[100- Loss %) x CP] /100} 12.Cost Price = {(100 x SP) / (100+ Gain %)} ________________________________________ : Cost price of the chair = [ (300 x 100) / (100 + 20) ] = 30000/120 = Rs. 250. 13.Cost Price = {(100 x SP) / (100 - Loss %)} 14. If a man buys 'p' articles for 'a' rupees and sells 'q' articles for 'b' rupees. Then, The % profit or loss = (p x b) - (q x a) / (a x q). Note: If the Sign is +ve...

PERCENTAGES SHORTCUTS FOR QUANTITATIVE APTITUDE 1. " Percent " implies " for every hundred". 2.The base used for the sake of percentage change calculations is always the original quantity unless otherwise stated. 3. In general, if the percentage increase is p%, then the new value is [(p/100) +1] 4. If the new value is k times the old value, then the percentage increase is (k-1) x 100 Eg1: If the percentage increase is 300%, the new value is 4 times the old value. If the new value is 4 times the old value, the percentage increase is 300%. 5. If there are successive increases of p%, q% and r% in three stages, the effective percentage increase is = {[(100+p) /100] [(100+q)/100] [ (100+r)/100] -1} x 100 Eg2: The percentage increase in the value of exports of apples of a country is as follows: 2001- 2002 => 25 %; 2002-2003 => 20 %; 2003-2004 => 10% What is the percentage increase in the value of exports of apples of the country fro...

RATIO AND PROPORTION SHORTCUTS FOR QUANTITATIVE APTITUDE    o    RATIO - the ratio of two quantities of the same kind is the fraction that one quantity is of the other, in other words to say, how many times a given number is in comparison to another number. A ratio between two nos.x A and B is denoted by A/B o    Some of the points to be remembered : 1.    The two quantities must be of the same kind. 2.    The units of the two quantities must be the same. 3.    The ratio has no measurement. 4.    The ratio remains unaltered even if both the antecedent(A) and the consequent(B)are multiplied or divided by the same no. o    If two different ratios ( say A /B and C/D) are expressed in different units, then if we are required to combine these two ratios we will follow the following rule= A xC / B xD     The required ratio is AC / BD o    The duplicate ratio ...

TRAINS SHORTCUTS FOR QUANTITATIVE APTITUDE  1. When a train passes a stationary point, the distance covered (in the passing) is the length of the train. Eg 1: What is the time taken by a train of length 360m to cross a pole at a speed of 72 kmph ? Ans: Time taken by the train to cross the pole = Length of the train / Speed of the train Speed of the train is given in kmph, whereas the length of the train is given in mts. So the speed of the train is to be expressed in m/sec. Speed of the train ( in mts/sec) = 72 x (5/18) = 20 mts/sec Time taken by the train to cross the pole = 360/20 = 18 seconds. 2. If the train is crossing a platform or a bridge, the distance covered by the train is equal to the length of the train plus the length of the platform or a bridge. Eg 2: How long will a train 200 m long travelling at a speed of 54 kmph take to cross a platform of length 100 m? Ans: Distance covered by the train = Length of the train + Length of the plat...

WHAT IS SYLLOGISM? A syllogism is a kind of logical argument in which one proposition (the conclusion) is inferred from two or more others (the premises). example: Premise 1: All women are mothers. Premise 2: All mothers are caring. Conclusion: All women are caring. All of us, who have given or are preparing for any kind of entrance exam like CAT, SSC, MAT, XAT, SCAT and others, have come across syllogisms. Venn diagrams are used to solve syllogisms and are considered the standard way. But Alas! our exams’ time limit does not provide us with the time enough to draw the diagram, label and shade it and draw the conclusion out of it! Then!! What to do? Well there is not much to worry. Here are some basic tips, tricks and step by step method which will help you to solve a syllogism or at least make it somewhat easier. Shortcut rules  (if Venn Diagrams are confusing you) between Statement 1 and Statement 2 in that order  All + All ...