Examples

Parin Sir > Examples
27
May
Multiplication By Short Cut-Methods

Multiplication  of  a  Number  By  99, 999, 9999 etc.  :   Place as many zeros to the right of  the multiplicand as is the number of  nines and from the number so formed, subtract the multiplicand to get the answer.

e.g. Multiplyi…

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27
May
Tests for Divisibility

Divisible  by   2n  : If  last n digits of  a number is divisible by  2n, the whole number is divisible by 2n.

Divisible by  2   :    A number is divis…

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27
May
BODMAS ( Process for Basic Arithmetic Operation )

When we have to perform a series of  mathematical operations, there is a rule regarding the order in which we should perform these operations. This rule is called BODMAS.

B = Bracket

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Posted in: Process for Basic Arithmetic Operation,
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27
May
convert a Recurring Decimal into Vulgar Fraction

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26
May
Kinds  of  Fractions

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Posted in: Quantitative Aptitude (Maths), Fundamental (Numbers),
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26
May
Fundamental (Numbers)

Relatively Prime  ( Co-Prime )  :   Two positive integers are said to be relatively prime to each other if their highest common factor ( H.C.F. ) is 1.

(a, b)  =   H.C.F.  of   a  and  b       &       [a, b]  =  L.C.M.  of  a …

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01
Jul
Time and Work Examples

TIME  &  WORK

Examples  :

  1.     A can build a wall in 40 days, which B alone can build in 50 days. If they build it together and get a payment of  Rs.  112…
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Posted in: Quantitative Aptitude (Maths), Fundamental (Numbers),
Tags: time and work, Examples,