English Section ( vocabulary )

1.Aberration-( A temporary change from what is normal or acceptable,especially one that is surprising )
                     The defeat was a temporary aberration,she quickly started winning matches again.
2.Ad lib-  ( speaking or performing in public without preparation)
                 Ajay gave an ad lib performance when he was asked to act on the stage.
3.Bluestocking-(A woman having,or pretending to have,literary tastes and learning)
                        She pretends to be a bluestocking.
4.Bombshell- (shocked)
                      The news of her death was a bombshell.
5.Bellicose- (eagerness to fight or aggressive)
                    We generally, avoid her because of her bellicose nature.

Arithmetic

The formula given below is quite useful for quick multiplication:
Multiplication of a given number 5 in the unit place in the number or square the root of number where the unit place value is 5 only. for example; 25x25.
                                                       Rule No.1. multiply unit place 5x5 ===25
                                                       Rule No.2.multiply tens place2by
                                                                       immediate its next number
                                                                       3 as 2x3=6
                                                                      write the result as 625
Examples:
              1. 35x35=1225
              2. 45x45=2025
              3. 55x55=3025
              4. 65x65=4225
              5.75x75=5625 and so on....  
                                                              

Arithmetic

In Hindu Arabic System, we use ten symbols 0,1,2,3,4,5,6,7,8&9.called digits to represent any number. A group of figures,representing a number is called a numeral. Representations of a number in figure is called notation and expressing a number in words is called numeration.
we use place value systems to represent a number.'Unit's place;Ten's place;Hundered's place etc.
Even Numbers: A numbers divisible by 2 is called an even number, such as 2,4,6,8,10,56,536 etc.

Odd Numbers:Aa numbers not divisible by 2 is called an odd numbers, such as 1,3,5,7,9,11,119 etc.

Prime Numbers: A number,other than 1 is called a prime numbers,if it is divisible by 1 and itself only.

Composite Numbers: A number, other than 1, which is not prime number is called a composite number.