LINE-GRAPHS     This section comprises of question in which the data collected in a particular discipline are represented by

PIE-CHARTS   IMPORTANT FACTS AND FORMULAE   The pie-chart or a pie-graph is a method of representing a given numerical

BAR   GRAPHS   this section comprises of questions in which the data collected in a particular discipline are represented in

TABULATION This section comprises of questions in which certain data regarding common disciplines as production over a period of a

HEIGHTS AND DISTANCES IMPORTANT FACTS AND FORMULAE   hypotenuse   1.We already know that:     In a rt.angled DOAB, where

BANKER’S DISCOUNT   IMPORTANT CONCEPTS Banker’s Discount : Suppose a merchant A buys goods worth, say Rs. 10,000 from another

TRUE DISCOUNT   IMPORTANT CONCEPTS   Suppose a man has to pay Rs. 156 after 4 years and the rate

Probability   Important Facts and Formula   1.Experiment :An operation which can produce some well-defined outcome is called an experiment

PERMUTATIONS AND COMBINATIONS   IMPORTANT FACTS AND FORMULAE   Factorial Notation: Let n be a positive integer.  Then, factorial n, 