Education and Career Forum

I want to know some shortcut tricks to solve numerical and reasoning questions.

There are a no: of mathematics tricks so that you can easily get the answer.some of them are-
1. Handling zeros

problem: if a question has a lot of zeros, it gets confusing very quickly. One good way to manage it without getting confused is to use the 10^x (10 to the power of) notation

100,000 = 10^5
1 million = 10^6
1 billion = 10^9

so, a simple example, for e.g. 400000*120000/8000000

= (4 x 10^5) * (12 * 10^4)/(8*10^6)
= (4 x 7) x (10^9)/(12 x 10^6) = 48 x 1000/8 = 6000
2. Multiplying by 11
(search the web for the Trachtenberg System of Mathematics for more nuggets)

write the number with a leading zero - e.g. 4323 = 04323
then add each digit to the digit on the right

0 4 3 2 3
= 4 7 5 5 3

If you have a carry over, add the carry-over to the next left operation

e.g. 9877 x 11 = 09867 x 11
= (0 + 9 + 1) (9+8 + 1) (8+6 + 1) (6+7) (7)
= 10 8 5 3 7 = 108537
3. A lot of ratio / percentage questions can be solved quite quickly if you remember these ratios. I have found them quite helpful.

1/2 = 50%
1/3 = 33%
1/4 = 25%
1/5 = 20%
1/6 = 16%
1/7 = 14%
1/8 = 12.5%
1/9 = 11.1%
1/11 = 9%
1/12 = 8.3%
1/13 = 7.7%
1/14 = 7%
1/15 = 6.7%
4. A quick way to finding how long it takes for a quantity to double: Rule of 72 or 69

It's usually good to know if X changes at Y% how long it takes to become 2X

Here are 3 ways

(a) Remember common %

5% 14.2
10% 7.3
20% 3.8

(b) Rule of 72. Simply do 72 / (Rate) and the answer, for lower rates, is a good enough approximate

i.e. 72 / y

5% : (72 / 5) = 14.4
10% : (72 / 10) = 7.2
20% : (72 / 20) = 3.6

(c) Rule of 69

Same as rule of 72 but 69 gives a higher level of accuracy. If you use the equation

2 = (1 + r)^t and solve for t, you would get ~0.69/r

to solve numerical and reasoning questions you need to practice as much as you can and you should remember the formula used to solve basic questions in mathematics. and for that you may purchase a book called "quantitative aptitude" by r s aggarwal.

Dear Friend
First of all i want to told you that Here it is not possible to describe all the tricks of Reasoning and Ar-thematic problems you should refer any Banking preparation practice book and it needs lot of Practice afterwords you will be expert ...

All the best

Thanks

hello,

well,the numerical and reasoning questions are a vast kind of field. you need to practise a lot for this.You can try the vedic method of multiplication like:


45
x 45
here,5x5=25 so,keep the 5 and carry 2,now cross multiply and add.ie.(4x5)+(4x5)=40,add 2=42.now keep 2 again carry 4. now multiply the 1st row.4*4=16 add the carry 4=20.

the result is 2025 is the ans.(in the order of keeping from the last)

You can refer:
magical maths book.
Aggarwal aptitude books.
vedic maths.


regards,
yash

every numerical is associatdd with shortcut methods......for eg,in statistics ,probability.taking mean deviation
2.also u may go to take vedic maths classes which is a most apt way of solving rapidly
3.for reasoning ques,jus 1 line would do,provid u include all key words in it!..remm ur stating the assertion and reaon for the statement!

Yes there is shortcut tricks to solve the numerical calculation. Vedic maths is very good maths book to solve the numerical calculation in tricks way.
And for reasoning ,you have to practice hard .

Hi, i am looking for bank exam . Will u please send some more trics on e.mail. ( [email protected] ) . Plz. . .

Hi, iam looking for bank exam. will u please send some trics to solve numerical aptitude

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shortcut tricks of reasoning and math numerical

Hi, i am preparing for bank exams . Will u please send me some tricks. My email id is [email protected].

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Hi, i am preparing for bank exams . Will u please send me some tricks.my email ID is [email protected]

Hi, i am preparing for bank exams . Will u please send me some tricks.my email ID is

[email protected]

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