Way 2 Freshers

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PERCENTAGES
EXAMPLE PROBLEMS:
1 . Express the following as a fraction.
a) 56%
SOLUTION:
56/100=14/25
b) 4%
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Important Facts and Formulae:
Results On Triangle
1.Sum of the angles of a triangle is 180 degrees.
2.The sum of any two sides of a triangle is greater
than third side.
3.Pythagoras Theorem:
In a right angled triangle (Hypotenuse)2 = (Base)2 +(Height)2
4.The line joining the mid point of a side of a triangle
to the opposite vertex is called the MEDIAN.
5.The [...]

ALLIGATION OR MIXTURES
Important Facts and Formula:
1.Allegation:It is the rule that enables us to find the ratio in which two of more ingredients at the given price must be mixed to produce a mixture of a desired price.
2.Mean Price:The cost price of a unit quantity of the mixture is called the mean price.
3.Rule of Allegation:If two [...]