## 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…