## Cube roots tricks, math shortcut tricks, find cube from 1 to 99 of given number

in banking and many other exam there is many question related to cube roots. In exam specially banking 2-3 question are related to cube roots.

In banking hard digit like 373248, 941192, 91125 etc are given and we have to find the cube of that number This is time consuming chapter in mathematics. We are providing shortcut tricks to find cube roots of a given number.

### First we need to learn this following table carefully

if you learn this table its helpful in finding cube of a given number.

 Number Cube root Last digit 1 1 1 2 8 8 3 27 7 4 64 4 5 125 5 6 216 6 7 343 3 8 512 2 9 729 9 10 1000 0

Basically last digit concept are used to find the cube root of given number

Here is the example
How to find the cube of the given number

if you practice practice and practice hard you can solve this within few seconds and save you time in exam hall.
if you have any problem we can discuss in comments

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## SQUARE ROOT TRICKS FOR FAST CALCULATION

square root is the important chapter in maths. 2-3 question are always based on this topic in every exams. While in banking 8 – 10 question are based on this square chapter or on the bases of square root tricks we going to solve within seconds.

we provide tricks how to calculate SQUAREfast within seconds
if you practice, practice and practice I think you will be able to solve square to 30 to 130 within few seconds and you can save time is exams.

squares

• number with last digit 5.
• from 30 to 50.
• from 50 to 80.
• from 80 to 100.
• from 100 to 130.FIRST OF ALL YOU CAN LEARN SQUARE BETWEEN 1 TO 30 IN MIND

 NUMBER SQUARE NUMBER SQUARE 1 1 16 256 2 4 17 289 3 9 18 324 4 16 19 361 5 25 20 400 6 36 21 441 7 49 22 484 8 64 23 529 9 81 24 576 10 100 25 625 11 121 26 676 12 144 27 729 13 169 28 784 14 196 29 841 15 225 30 900

FIRST CASE:-  NUMBER WITH LAST DIGIT 5 SECOND CASE:- SQUARE BETWEEN 30 TO 50 THIRD CASE:- SQUARE BETWEEN 50 TO 80 FOURTH CASE:- SQUARE BETWEEN 80 TO 100 FIFTH CASE:- SQUARE BETWEEN 100  TO 130 MOCK TEST
Q1. Find the square of 95?

a. 9125

b. 9025
c. 9225
d. 9175
Q2. Find the square of 42?
a. 1763
b. 1764
c. 1765
d. 1766
Q3. Find the square of 79?
a. 6233
b. 6255
c. 6241
d. 6251
Q4. Find the square of 121?
a. 15252
b. 12625
c. 14625
d. 14641
Q5. find the square of 98?

a. 9604

b. 9609
c. 9603
d. 9600

# Must Have Books for competitive Exams of All Types ## FOR CUBE ROOT TRICKSFOR PROFIT LOSS TRICKS

FOR WORK AND TIME

## FOR PERCENTAGE TRICKS

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## MATH SHORTCUT TRICKS

### SHORT CUT TRICKS FOR WORK AND TIME

This time we are going to solve work and time chapter with shortcut tricks. we are also aware that this chapter is important for competitive exam from work and time chapter mainly 3 question are asked in various exam like ssc, upsc, banking etc. that work and time are time consuming chapter.

now, we are going to solve work and time problem with short cut tricks. If you learn this tricks you can solve these question in seconds.

All these question are taken from R.S. AGARWAL author quantitative aptitude published by S. Chand

WORK AND TIME SHORTCUT TRICKS, MATH SHORTCUT TRICKS

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## MATH CHAPTER

### Profit And Loss Short Tricks

In the examination conducted by various recruitment we find this type of question that will be asked in chapter of profit and loss. These type of question are time consuming but we have to manage our time in the examination hall.
We are going to solve this various type question on profit and loss with short tricks.
with short tricks you can solve these question simple within seconds.
These are the example taken from r.s. agarwal author quantitative aptitude by s. chand publisher

Type 1:- The ratio of the cost price and the selling price is 4:5. The profit percent is?
a.        10
b.        20
c.         25
d.        30

Ans:- 25
profit is always calculated on cost price
so,  c.p=4 , s.p=5
Profit=s.p-c.p,  5-4=1
profit %=
profit/cost price * 100, then, 1/4*100= 25

Type 2:- If on selling 12 notebooks a seller makes a profit equal to selling price of 4 notebook, what is his profits percentage?
a.        16.2/3
b.        25
c.         50
d.        None of these

Ans:-50

if there is profit on selling item = selling price of an article

To find profit %, simply minus 12 from 4= 8

Profit % = 4/8*100=50
Type 3:- A vender loses the selling price of 4 oranges on selling 36 oranges his loss percentage is?

a.        10
b.        11.1/9
c.         12.1/2
d.        None of these

Ans:-10
if there is loss on selling item = selling price of an article
to find loss%, simply add 36 to 4 = 40

Loss % = 4/40*100 = 10
Type 4:- Some article were brought of 6 for rs. 5. And sold  at 5 for rs. 6. Gain percentage is/
a.        30
b.        33.1/3
c.         35
d.        44

Ans:-44

Type 5:- A vender by selling 12 toffee for a rupee. A man loses 20%. How many for a rupee should he sell to get a gain of 20%?
a.        10
b.        20
c.         8
d.        12

Ans:- 8
12 toffee for rs 1 loss 20% then
c.p = 1*100/80 = 5/4
on this price we have to gain profit of 20%

So, 5/4* 120/100 = 3/2
If for Rs. 2/3 we have 12 toffee then for rs 1 we have
= 12×2/3=8
Type 6:- A sell a bicycle of to B at a profit of 20%. B sell it to C at profit of 25%. If C pays rs. 225 for it the cost price of bicycle is?
a.        110
b.        120
c.         125
d.        150

Ans:- 150
let cost price be X then,
x.120/100
. 125/100= 225 ,
by solving, then X equal to 150
Type 7:- A shopkeeper professes to sell his goods at cost price but uses a weight of 800gm instead of 1kg. thus he makes a profit of?
a.        20%
b.        16.2/3
c.         25
d.        50

Ans :- 25
Type 8 :- A shopkeeper cheats to the extents of 10% while buying as well as selling by using false weight his total gain is ?
a.        10%
b.        11%
c.         20%
d.        21%

Ans :-21%

Type 9 :- An article when sold at a gain of 5% yields rs. 15 more than when sold at a loss of 5%. Its cost price would be
a.        150
b.        200
c.         250
d.        300

Ans:-150
difference between gain % and loss% equal to 10%
then, 10% = rs. 15
100% = rs. 150 , that is your cost price
Type 10:- The price of an article has been reduced by 25%. In order to restore the original price the reduced price must be increased by?
a.        25%
b.        30%
c.         33%
d.        33.1/3%
Ans:-33.1/3%
Type 11:- An article was sold at 16% gain. Had it been sold for rs. 200 more, the gain would have been 20% then the cost price of the article is?
a.        5000
b.        4800
c.         4500
d.        5200
Ans :- 5000

difference in gain % equal to 200,

Then  20%-16%=4%
4%= 200 then,
100%= 5000 that is your cost price of the article

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