OG-11 RESOURCE..

HEY FRIENDS!
some of our readers were asking about og-11 resource

so here is the link to download that.

OG-11

please let us know if you need or think any other utility should be provided or will be useful

VEDIC MATHS:- QUERY SOLVING

hey friends..

one of our regular readers asked us a question about some trick which can help in subtracting a number from the base number.
we are sorry for the delay in solving that query but that happened coz i was busy in my exams.

here is a trick which i think could be helpful...

step 1:- take the number you need to subtract from base number

(it will surely be near that number. i mean if you have 22 your base will be 100 or if its 760 then it might be 1000)

step 2:- subtract the units digit from 10, and remaining digits from 9 of the number you need to subtract from the base.

and thats it... :)

isnt it really simple

lets see it with an example

you want to subtract 638 from 1000 so what will you do....

6---3---8 (subtract from)

!----!----!

9---9---10

------------

3---6---2 is the answer

------------

you can subtract any number from base number with this trick




and one more thing friends
we will provide the link for OG-11 today with in 2 hours
the file is in uploading process

let us now if you need any other utility or resource.

keep working smart (not hard) :)

Some neat vedic math tricks

SQUARING OF NUMBERS NEAR THE BASE.

Observe simple examples:

97 Squared = 97 -­ 3 / 3x3 = 94 / 09
96 Squared = 96 -­ 4 / 4x4 = 92 / 16.

When the number being squared is above the base, of 100 here, we add the Excess and Square the Excess:
104 Squared = 104 + 4 / 4x4 = 108 / 16 = 10, 816
104 x 105 = 104 + 5 / 4x5 = 109 / 20 = 10, 920

What if we enlarged our numbers to 998 Squared?

It is close to 1,000 so we say Base 1,000 and know to have 3 zero's on the right hand side of the ( / ).
998 Squared = 998 -­ 2 / 2x2 = 996 / _ _ 4 = 996 / 004. = 996,004

Understanding this, you can be calculating digits in the millions: 9998 Squared = 9998 -­ 2 / 2x2 = 9996 / _ _ _ 4
(Since we are in Base 10,000 the 4 zeros determine the need for 4 digits after the ( / ). = 9996 / 0004 = 99,960,004.

THE SQUARING OF NUMBERS ENDING IN 5

If we wanted to square the number 25, ie 25 x 25, we would conventionally take 3 lines of working out. Vedic Mathematics merely looks at the Question, applys one of the 16 Sutras, and solves it Mentally in One-Line. In this case, the Sutra at work is "By One More Than The Previous Digit".

Observing that 25 is a 2 digit number, 5 is the last digit, but we are mainly interested in "the Previous Digit" which is 2.
We say, mentally, "What is One more than Two?" It is 3. The word "By" in the Sutra really means "to multiply".
The setting out for the first half of the answer is thus:
25 Squared = 2 "By" 3 / ........ = 2 x 3 / ........ To this we tag on the last digit "5" squared: = 2 x 3 / 5 x 5 = 6 / 25
Thus the answer is 625.

Similarly, all other numbers that end in 5, when squared, can be done instantly:
15 Squared = 1 x 2 / 5 x 5 = 2 / 25 = 225
35 Squared = 3 x 4 / 5 x 5 = 12 / 25 = 1,225
45 Squared = 4 x 5 / 5 x 5 = 20 / 25 = 2,025
95 Squared = 9 x 10 / 5 x 5 = 90 / 25 = 9, 025

Hi friends

We will be continuing with our vedic maths lessons after this post . This is for convenience of those friends who have just started reading the blog and are new here and want to find the GMAT preparation material i previously released on this very blog.
Following are the links to the material I published in earlier posts.

1. Download GMAT material
   
2. More GMAT resources
3. Quant resources
4. Some useful GMAT resources
   

VADIC MATHS - LESSON NUMBER TWO.

after learning how to square a number ending with 5 now we will do something called comman base method.

this method is a technique of multiplying number which comes under same base.
this base could be anything like
-10
-100
-1000 etc.

to multiply two numbers we just need to make them subtracted or added to a comman base.
lets do an example.
MULTIPLY 99 X 92

step 1:-MAKE COMMAN BASE
here the base is 100. (coz while setting the base we should keep in mind that the base should be closest to the numbers to make sure that the minimum calcultaions will be required.

step 2:-SUBTRACT THE NUMBERS FROM THE BASE AND WRITE THEM IN THE ORDER.

100- 99 = 01
100- 92 = 08
(we write the number we get after subtraction in as many digits as many zeros we have in the base, here we have 2 zeros in 100)
AND YOU HAVE TO WRITE THESE IN THE FOLLOWING SEQUENCE

99 01
X !
92 08
----------
91 08 = 9108 is the answer


this 91 we get my subtracting (92-01) or (99-08) cross digits
and 08 we get by multipling the straight line of the digits we get after subtraction from base (01 X 08)
the zero wil remain coz we have two digits in our base.

isnt it simple

now lets try this with two digits which
one is bigger than base another is smaller than base

112 X 92

so step 1:-
112-100 = +12 (no need to add zero coz we have only two zeros in base and we have two digits in 12 as well)
92-100 = -08 (the sign will be on negative coz 92 is lesser than 100)

(in the previous example we ignore negative sign by subtracting both the digits from 100 but in this case its not possible)

so now we have

112 +12
92 -08
-------------
104 -96

now we have to right it like this

10400
- 96
-----------
10304 thats the answer
-----------

you can try this on any number

try it

tables are still important

learn from 1X30 to 30X30

we will keep posting more tricks till then master these ones

gaurav

VADIC MATHS - FIRST LESSON

after getting a good response about vadic maths here is the very first lesson about this.
before starting let me tell you again that its not gona be a cup of tea but yes, we can do this all together.

keeping in mind that "practice makes a man perfect and writting makes a man exact"
we will start our very first lesson.

ok the very first thing we will discuss is squaring a number ending with 5

ok let begin with this (you must be knowing that 5 square is 25 ) ;)

step one: take a number ending with 5.

say, 45.

step two: write the ten's and unit's number 25 without thinking much.

so you have xxxxx25 (doesnt matter how many digits before 25)

step three: take the remaining number before 5 from the original number

in this case its 4

step four: add 1 to this number(step 3) and multiply the number with the number of step three.

means (4+1) X 4 = 20

step 5 : simply put this number(step 4) in front of step 2's 25

means 20 25

and thats your answer 2025

you dont even need a calculator.

now we will try this formula for some more numbers...

lets take 25.....

----- xxxxx25
------ (2+1)X2 = 6
--------- 625

thats the square of 25 :)

lets do this for a bigger number say, 85

------- xxxxx25
------- (8+1)X8 = 72
------- 7225
thats the answer

you can use the same formula for ever number ending with 5.

and now the homework comes......

you should learn the tables.... i know you have done a lot of them in school but its time to revise them

learn from 1X20 to 30X20 or atleast till 20X20

this will help when you solve three and four digit numbers...

let us know if you like this lesson coz this lesson is just the begining and we will do many more

:)

QUANT! ---- VADIC MATHS.

hey pals!
hope your prepration is going well....

we will discuss something about quant now.after a detailed discussions with my professors and other lecturers of quant i got some good knowledge which i would like to share with you.

first of all lets discuss why they actually want us to know quant?
- actually quant is the section which is segmented to test the aplicant's mental abilities to deal with figures.

you would be wondering like me about why they actually give so much importance to verbal calcultations (we have pcs, calculators and hell lot of equipments) but the answer is somewhat justified.

they want us to show how fast we are in playing with figures. the professor i talked about all this told me that you have to have a compatibility with figures because while reading company reports (some times from xx to xxx pages) and full of ratios and data figures, calculators and pcs become obsolete and mental abilities makes all the difference. they told me that the thin line between a good managerial decision and a bad one is actually generated from here only and i agreed him somewhat.

anyways the better reason to work on quant is - it is present in exam and you are not USA's president who can alter the exam style. so better learn it and rule the exam.

the main thing as mentioned above is figures and compatibility with them and to have a good gelling with figures you must be easy with calculations.

we are doing them from very first standard in schools and still have some kind of a fear left with in us about how to go ahead with them. so here is a solution to the problem-

VADIC MATHS

yes this is the sollution for all the problems or atleast most of them. after learning this you will wonder how easy it is to multiply and divide numbers which you wouldnt have even dared to add or subtract.percentages and proportioning will be not a difficult task at all.

it wont be easy but nothing to worry about. lets start this all together and lets see where we can reach.

we will start with vadic maths tricks and methods from the next post.

let me know if you are interested in these techniques.

Download GMAT material

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More resources for GMAT preparation

These are some more resources for download that will be very helpful in your GMAT online preparation.

• GMAT OFFICIAL GUIDE 10th EDITION

• GMAT MINI TEST

Though Vocab is not a part of the GMAT but its essential that every GMAT aspirant has agood vocabulary as it comes into use at many points in the exam. For preparing Vocab here is a very useful list of the 250 most important word which i think every GMAT aspirant should go through.

• VOCABULARY