Problem solving tricks on sales and discount
IMPORTANT CONCEPTS Suppose a man has to pay Rs. 156 after 4 years and the rate of interest is 14% per annum. Clearly, Rs. 100…
Tips and Tricks To Solve Problems on Races and Games
Races: A contest of speed in running, riding, driving, sailing or rowing is called a race. Race Course: The ground or path on which contests are made…
Missing Letter Puzzle for Interviews, Placement and Competitive Exams
MISSING LETTER PUZZLES Answer : K Explanation : The numerical values of the letters in opposite segments of the circle always add up to 17.…
Missing Number puzzles: Interviews, Placements and Competitive Exams
MISSING NUMBER PUZZLES Answer : 6 Explanation : Looking at the diagram in rows, the central circle equals half the sum of the numbers…
Tricks to solve surds and indices
Laws of Indices: am x an = am + n am = am – n an (am)n = amn (ab)n = anbn a n = an b bn a0 = 1 Surds:Let a be rational number and n be a positive integer such…
Tips and Tricks related to Stocks and Shares
Stock Capital:The total amount of money needed to run the company is called the stock capital. Shares or Stock:The whole capital is divided into small units,…
Tips to solve seating arrangement problems
SEATING ARRANGEMENT In order to solve seating arrangement questions, first of all diagram should be made. By doing so questions are easily and…
Tips to solve problems related to Chain Rule
Direct Proportion:Two quantities are said to be directly proportional, if on the increase (or decrease) of the one, the other increases (or decreases) to the…
Tips and Tricks on Simplification related problems in Aptitude
‘BODMAS’ Rule:This rule depicts the correct sequence in which the operations are to be executed, so as to find out the value of given expression.Here…
Tricks to solve Volume and Surface Area Problems
CUBOID Let length = l, breadth = b and height = h units. Then Volume = (l x b x h) cubic units. Surface area = 2(lb + bh + lh) sq. units. Diagonal = l2 + b2 + h2 units. CUBE Let each edge of a…