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mathematics is the indispensible instrument of all physical research

berthelot

MATHEMATICS IS THE ONLY SUBJECT WHICH DEVELOPS OUR LOGICAL THINKING

pavanchandra

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Vipul Chavan 4 years ago

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I must recommend this website for placement preparations.

yash mittal 5 years ago

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(10 years ago) "Other"

solve it
10 16 15
12 4 15 12 12 28 11 ? 23
9 20 16
Thaanx in advance ....

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(10 years ago) "Other"

A and B run a race of 2000m.First A gives B start of 200m and beats him by 1minute.next A gives B a start of 6 minutesand is beaten by 1000m.find the time in minutes,in which A and B can run the race seperately
A)10,18 B)10,12 C)8,10 D)12,18

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(10 years ago)

C option as b will cover 200m in 2min.....so 1000 m in 10 min. And only c have that option

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(10 years ago)

Hope c is the answer

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(10 years ago) "Other"

if any openings(Drive) is there,plzz plzz inform me.....
email ( nnr16620@gmail.com)

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(10 years ago) "Other"

2,9,5,49,11,169,? please complete the series

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(10 years ago)

next term will be 17.
this is sequence of prime numbers as
2, 3^2, 5, 7^2, 11, 13^2, next prime number is 17.

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(10 years ago)

17
Prime no.
2, 3sq,5,7sq,11,13sq,17

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(10 years ago)

17 .. prime no. series

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(10 years ago)

Number 17...
A prime number series from 2....
The even places are squared....

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(10 years ago)

2,3^2,5,7^2,11,13^2,17

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(10 years ago) "Other"

if some one have latest pattern of IBM placement paper Please mail me on rheagupta222@gmail.com thanku

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(10 years ago)

latest Ibm pattern is same , They do not change the pattern, otherwise you can refer the indiabix.com

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(10 years ago) "Other"

find 10th term of series 2,7,9,13...

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to (10 years ago) "Other"

bahut apti padhi jaa rah hai

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(10 years ago) "Other"

Hello friends!
Tcs is coming in our college. Vryy exited to face the apti. As well as interview. Any one help has any material regarding to apti test then share me plzz.

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(10 years ago)

all the best......if you have made an id in tcs then they have provided the sample paper, it is more than enough

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(10 years ago)

Best luck for apti...

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(10 years ago)

pls go through all the problms in this website and regarding interview get well prepared on both technical rather than ur areas of interest

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(10 years ago) "Other"

In a rectangular coordinate system, what is the area of a triangle whose vertices have the coordinates (4, 0), (6, 3), and (6, -3)?

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(10 years ago)

applying general area formula 1/2 * base * height
area = 1/2 * ( 3 - (-3)) * (6-4) = 6 sq units

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(10 years ago) "Other"

how the sum of 5 odd number between 1 to 15 (1,3.5,7,9,11,15) is 30?
_+_+_+_+_=30

_

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(10 years ago)

15 + (13-11) + 9 + (7-5) + (3-1) =30

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(10 years ago)

ANKIT PANDEY -- You used 8 odd numbers between 1 to 15 so i think it is wrong answer
if your answer is right then what is the meaning behind asking sum of ---5--- odd numbers

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(10 years ago)

@RAM there is no possibility to get an even number by adding 5 odd numbers so you can only adjust it. I think my answer is correct.

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(10 years ago)

@ankit pandey
please consider my answer also
1+3+5+9+11+1 = 30
here i have used 5 odd numbers ( 1,3,5,9 and 11 ).

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to (10 years ago) "Other"

An organization has 4 committees. Only 3 persons are members of all four committees, but every pair of committees has 4 members in common. What is the LEAST possible number of the members on any one committee?

plzzz solve

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(10 years ago)

least possible number of employees in organization is 7 and least possible members in a committee are 5.

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(10 years ago)

Pls do tell how u have solved it

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(10 years ago)

use set thoery to solve this ans will be 4

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(10 years ago)

draw venn diagram...ans is 4

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to (10 years ago) "Other"

The number of ways of rolling a dice where no two numbers probability that no one rolls the same number = 6 x 5 x 4 x 3
Now total possibilities of rolling a dice = 6^4
The probability that a no one gets the same number = 6×5×4×3/6^4=5/18
So the probability that at least two people gets same number = 1−5/18=13/18

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(10 years ago) "Other"

Find the value of 1!+2!+3!+4!+5!+..........+50! ?

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(10 years ago) "Other"

The citizens of planet nigiet are 8 fingered and have thus developed their decimal system in base 8.A certain street in nigiet contains 1000 (in base 8) buildings numbered 1 to 1000.How many 3s are used in numbering these buildings?
a) 54 b) 64 c) 265 d) 192

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(10 years ago)

sali r kono question peli na???????/

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(10 years ago) "Other"

if the third term of an arithmetic progression is divided by second term,the quotient is 6,and if the eighth term is divided by the fourth,the quotient is 2 and the remainder is 2.what is the sum of the first 15 terms of the progression?a)650 b)410 c)570 d)495

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(10 years ago)

check your question..plz

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(10 years ago) "Other"

if x y are real numbers satisfying x>0,y>0 and x+y

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(10 years ago)

if x y are real numbers satisfying x>0,y>0 and x+y

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(10 years ago)

x>0 and y >0
=> x+y >0

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(10 years ago) "Other"

how much pure acid must be added to 12 liters of a 40% acid solution in order to produce a 60% acid solution a)5 lit b)6 c)7 d)8 e)9

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(10 years ago)

12 ltr of 40% acid solution contains 4.8 ltrs of acid.
to make it 60% acid solution we add let us say x ltr of acid

i.e. (4.8 + x) / (12 + x) = 60%
(4.8 + x) / (12 + x) = 0.6
solving this we get,
x = 6

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(10 years ago) "Other"

if x y are real numbers satisfying x>0,y>0 and x+y

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(10 years ago) "Other"

the average age of 5 boys is 18 year and a new boy joins them by which their average age becomes 19 years.then age of the newcomer is a)20 b)22yr c)24 yr d 30yr d)32

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(10 years ago)

total age of 5 boys = 18*5 = 90,
total age after newcomer = 19*6= 114

age of newcomer = 114 - 90 = 24

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(10 years ago) "Other"

find the exact value of sin square 45 + cos square 60

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(10 years ago)

sin square 45 = 1/2
cos square 60 = 1/2 * 1/2 = 1/4
on adding, 1/2 +1/4 = 3/4

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(10 years ago) "Other"

one interior angle of a polygon is of measure 100 and the remaining angles are all of equal measure namely 124.what is the number of slides?a)7 b)8 c)9 d)5

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(10 years ago)

in case of polygon, sum of interior angle must be multiple of 180.
i.e. 100 + 124 * X must be divisible by 180. we get 100 + 124 * 5 = 720 which is divisible by 180. thus there are 6 interior angle and will have 6 sides, so answer is 6. which is not in any of your options.

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(10 years ago)

is it a regular polygon

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(10 years ago)

there is no option like 6

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(10 years ago)

the option are wrong....answer will be 6 only

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(10 years ago)

yes it is regular ploygon

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(10 years ago)

how come this be regular polygon? if all angles are not equal, one angle is 100 and rest are 124.

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(10 years ago)

inline geek, its not a regular polygon the options are wrong your answer is write, it will be off 6 sides

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(10 years ago) "Other"

how much money should rita invest 6 2/3% stock at 110 to secure an annual income of rs 900?
a)99000 b)56000 c)28300 d)14850

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(10 years ago)

can you anyone answer this question

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(10 years ago)

option d is the answer
(900*3*20)/110=14850

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(10 years ago) "Other"

Two vehicles A & B leave from city Y to City X. A overtakes B at 10.30 a.m and reaches X at 12.00 p.m .It waits for 2 hrs and returns to city Y.On its way it meets B at 3.00 p.m and reaches city Y at 5 p.m.B reaches city X ,waits for 1 hour and returns to city Y.After how many hours will B reach city X from the time A overtook him for the first time.??

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(10 years ago) "Other"

a man invested rs 1735 in 9% stock at rs.86 3/4.what is his income from the investment?a)180 b)173.50 c)rs 200 d)rs 185

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(10 years ago)

can you any one answer this question

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(10 years ago)

option a is the answer
(1735*9*4)/347=180

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(10 years ago) "Other"

If there are 1/3 women out of which 2/3 are married.Out of married women 1/3 have children. 1/2 men are married and 2/3 have children.Out of married men 2/3 have children.
Find the fraction of men & women with no children

Reply Like? Yes (2) | No (1)

(10 years ago)

suppose there are total of 27 men and women
so 1/3 * 27 = 9 women
=> 18 men
married women = 2/3 * 9 = 6
with children = 1/3 * 6 = 2

=> women with no children = 9-2=7

married men = 1/2 * 18 = 9
with children = 2/3 * 9 = 6

without children = 18-6=12

fraction of women without children = 7/27
and for men = 12/27 = 4/9

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(10 years ago) "Other"

there are some items u have to place in boxes.if u place 3items per box 1 item is left outside.4 items per box 1 item remianed.similary for 5 items per box and 6 items per box 1 item is left.for 7 items for box no item is left.how many no of items are there?

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(10 years ago)

first calculate the LCM of 3,4,5,6 = 60
so the multiples of 60 will be divisible by 3,4,5,6
now if we add 1 to the multiples of 60 we will get 1 as remainder
so now for calculating the answer we have to check
(60+1), (120+1), (180+1), (240+1), (300+1), (360+1),and so on is divisible by 7 as in question if divided by 7 there should not be any left item

so when 301 is divided by 7 gives remainder 0
301 divided by 3,4,5,6 gives remainder as 1

301 is the answer

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(10 years ago)

can u provide the complete procedure to solve this prob?

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(10 years ago) "Other"

How to find the factorial of big number like; !720

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(10 years ago) "Other"

please tell me type of question in tcs.

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(10 years ago)

make a id in the tcs and they will give you a sample test paper after few days.
1st paper is verbal in which you have to write an email in 10 min
next session will be of apti mainly comprises of geometry, speed distance, profit and loss, number system, probability, work problem

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(10 years ago) "Other"

mathematics shows our actual level of our ability.

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(10 years ago) "Other"

" search a good rank in yourself. "

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(10 years ago) "Other"

find the odd one in th series 812,398,190,90,40,16

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(10 years ago)

16 its a perfect square

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(10 years ago)

190 is the odd no. because
16*2+8=40
40*2+10=90
90*2+12=192
and so on...

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(10 years ago)

gitanjali k is correct......sorry, but i thought in that way

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(10 years ago) "Other"

Image of point (3,8) in the line x + 3y = 7 is?

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to (10 years ago) "Other"

plz send tcs Q to ananddesai1114@gmail.com

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(10 years ago)

Sorry my id is sharmaakanksha37@gmail.com plz sed tcs recent quesns thanx

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(10 years ago) "Other"

How many ways can 7 different objects be distributed among 3 people such that at least one of them gets exactly one object?

Reply Like? Yes (3) | No

(10 years ago) "Other"

consider a well of 100 mt depth and a frog at the bottom of the
well. It climbs 3mt in day time n slides down 2mt during night. How
many days it needs to climb the well?

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(10 years ago)

1st day = 1 mt
2nd day = 2mt
and so on
on 97th day = 97 mt
and on 98th daytime = 97+3=100
so the answer is 98th day

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(10 years ago) "Other"

prasanthivalida96@gmail.com

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(10 years ago) "Other"

please send me infosys placement papers and help to crack me infy written test please friends iam hvng campus on satday

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to (10 years ago) "Other"

hii komal!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

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to (10 years ago) "Other"

great going bihari babu . nam raushan kr diya bihar ka..

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(10 years ago) "Other"

A baseball team has 11playerss, including Alice and Bob. Alice is the first baseman and Bob is the catcher. How many ways are there for the coach to fill the positions of second baseman and third baseman from the remaining players?

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to (10 years ago) "Other"

hai hw ru suganya

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to (10 years ago) "Other"

what is the solution for (sqrt(5(sqrt(6(sqrt(7)))^2)/sqrt(64) ???

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(10 years ago) "Other"

If 97 is multiplied by a certain number, it is increased by 7566. Find the number.

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(10 years ago)

let that multiplier be x
97 increased by 7566 means 97+7566.

97 multiplied by a certain number = 97*x.

given, 97 multiplied by a certain number = 97+7566.
so 97x = 97 + 7566
97x = 7663
x = 79
therefore that multiplier is 79.

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to (10 years ago) "Other"

if u have infy papers please send me to ramraj.pal_08@yahoo.com thanks in advance

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(10 years ago) "Other"

please sent me IBM sample questions with answers to jananigunasekar91@gmail.com

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(10 years ago) "Other"

How to do permutations and combinations problems

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(10 years ago) "Other"

please send me tcs sample question papers to akshayamj14@gmail.com
please send it as soon as possible .. need it urgently

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(10 years ago) "Other"

sir pls mail me tcs latest papers to lokenderrathore1992@gmail.com sep 26th i had drive sir plss

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(10 years ago) "Other"

what is the sectional cutoff for IBM aptitude section....????plz reply soon

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(10 years ago) "Other"

please send me some Infosys sample question paper to abisweety11@gmail.com

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