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Challenger of the Day

M V DINESH

India

Andhra Pradesh

Time: 00:01:59

Points

Maths Quotes

A mathematician is a blind man in a dark room looking for a black cat which isn't there

Charles R. Darwin

Mathematical proofs, like diamonds, are hard and clear, and will be touched with nothing but strict reasoning.

John Locke

Placed User Comments

Placed in Infosys With Help for M4Maths
Thank you :) :)

Ankush Bansal 2 years ago

I got successfully placed in TCS pool drive. Thank you M4 Maths

Naveen Kumar 2 years ago

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(1 Day ago) "Other"

4 men and 3 women finish a job in 6 days and 5 men 7 women can do the same job in 4 days how long will one man and one woman take to do the work

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(2 Days ago) "Other"

The cost of telephone calls in an industrial town is 30 paise per call for the first 100 calls, 25 paise per call for the next 100 calls, and 20 paise per call for calls exceeding 200. how many calls can one make for rs.50

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(2 Days ago)

Pls anyone tell me the shortcut
I dnt require the process i want shortcut

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(2 Days ago) "Other"

. Find the maximum number of girls among them 2923 bags and 3239 eyeliners can be
distributed in such a way that each student gets the same number of bags and eyeliners

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(3 Days ago) "Other"

Pand Q started a business with Rs 35000 and Rs. 20000 respectively. They agreed to share the profit in the ratio of the capital R joins the partnership with the condition that P, and R will share profit equally and pets Rs. 220000 as premium for this to be shared between Pando This is to be divided between P and O in the ratio of

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(5 Days ago) "Other"

Out of a total of 120 musicians in a club, 5% can play all the three instruments namely guitar,
violin and flute. It so happens that the number of musicians who can play any two and only two
of the above instruments is 30. The number of musicians who can play the guitar alone is 40.
What is the total number of those who can play violin or flute alone?

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(8 Days ago) "Other"

Anyone is preparing for 30th june elitmus test?

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(10 Days ago) "Other"

Two workers undertake to do a job. The second worker started working two hour after the first. Five hours after the Second worker has begun working, there is still 9/20 of the work to be done. When the assignment is completed, it turns out that first worker has done 60% of the work while second worker has done rest of the work. How many hours would it take each one to do the whole job individually?

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(6 Days ago)

Ans: 20 hrs, 25 hrs

Working alone, let 1st worker can do a job in 'A' hrs and 2nd worker in 'B' hrs, then
1st working for 7 hrs and 2nd for 5 hrs, completes 11/20 of the work.
=> 7/A + 5/B = 11/20 ---(i)
Let the work gets completed in 'x' hrs and 1st worker does 60% work => x/A=60/100 or 1/A=3/5x ---(ii)
2nd worker does 40% work in (x-2) hrs => (x-2)/B=40/100 or 1/B=2/[5(x-2)] ---(iii)
Now substituting value of 1/A & 1/B in eqn (i), we get 7*(3/5x) + 5*2/[5(x-2)] = 11/20
21/x + 10/(x-2) = 11/4
[21(x-2) + 10x]*4 = (x² - 2x)*11
124x - 168 = 11x² - 22x
11x² - 146x + 168 = 0
11x² - 132x - 14x + 168 = 0
(11x-14) (x-12) = 0
x = 14/11, 12, considering whole number x=12
Now substituting value x=12 in eqn (ii) & (iii), we get A=20, B=25
Therefore, 1st worker takes 20 hrs and 2nd worker takes 25 hrs, to do the job individually.

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(14 Days ago) "Other"

In how many ways can the letters in mmmnnnppqq can be arranged with two n's together?

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(14 Days ago) "Other"

In each of the series 1+3+5+7+... and 4+7+10+... is continued to 1000 terms. find how many terms are identical between the two series?

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(1 Month ago) "Other"

Looking for jobs

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(1 Month ago) "Other"

Hirasugar Instiute Of Technology

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(1 Month ago) "Other"

#Business related problems by black magic#.#Business related problems by black magic#.

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(1 Month ago) "Other"

correct the sentence "The strange creature had shining feathers on his body ,his mouth appeared as though he was smiling constatnly,though he looked fierce "

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(1 Month ago) "Other"

Hey guys, I have found some useful programming/technical mcq which will help you to prepare for placement drive.
m4maths preparation material is really good doing after that you can check
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(1 Month ago) "Other"

Prof Prem raj Pushpakaran -- https://gurushots.com/profpremrajpushpakaran/photos

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(1 Month ago) "Other"

Prof Prem raj Pushpakaran -- https://bio-protocol.org/UserHome.aspx?id=1049182

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(1 Month ago) "Other"

Prof Prem raj Pushpakaran -- https://cr4.globalspec.com/member/101433/profpremrajpushpakaran

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(1 Month ago) "Other"

Prof Prem raj Pushpakaran -- https://bio-protocol.org/UserHome.aspx?id=1049182
https://cr4.globalspec.com/member/101433/profpremrajpushpakaran

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(1 Month ago) "Other"

I am finish 12 standard next i waht do

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(1 Month ago) "Other"

prof premraj pushpakaran -- https://europepmc.org/authors/0000-0002-2289-5277

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(2 Months ago) "Other"

Permutations and combination puzzles

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(2 Months ago) "Other"

A seller bought 2750 Mangoes and 1210 Apples at the same price. He sells in such a way that he can buy 406 Mangoes with the sale of 322 Mangoes and he can buy only 289 Apples with the sale of 391 Apples. Then what is the overall profit percentage made by him?

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(2 Months ago) "Other"

For better result, he can use last 12 minutes as 4 ( think) + 8 ( typing).

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(2 Months ago) "Other"

Please refer 'Today's puzzle'dated 11.03.2019.
I think option 175 is not correct.
He can divide every 12 minutes of his working in two parts
4 minutes for thinking and 8 minutes for typing.
Hence total 46 lines are typed in 12 minutes.
Then he takes rest for 6 minutes.
Hence in 18 minutes, he thinks and types 46 lines.
In 72 minutes , he will type 46*4=184 lines.

If this is puzzle site, think logical also.
If one has to calculate simply like 5th standard student, then it's your choice.
Do not make it 'M for murder of maths'.

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to (2 Months ago) "Other"

Hii,

can you please send the test papers to gurunadth@gmail.com

Thanks

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(2 Months ago) "Other"

Are you one of those people who doesn't trust anyone else to do what needs to be

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(2 Months ago) "Other"

Find the error
They have/placed ordered/for books

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(2 Months ago) "Other"

Can anyone help me with IBM previous year paper my mail id is chitra.priya176@gmail.com

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(2 Months ago) "Other"

I am Kunal Bangar pursuing Bachelor of Engineering in Computer Science and Engineering branch.

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(2 Months ago) "Other"

In what ratio should wheat at Rs. 4.5 per kg be mixed with another variety at Rs. 5.25 per kg so that the mixture is worth of Rs. 5 per kg

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(2 Months ago)

Use alligation answer is 1:2

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(1 Month ago)

ratio is 2:1

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(1 Month ago)

Let 'x' kg of wheat costing Rs. 4.5/kg is mixed with 'y' kg costing Rs. 5.25/kg, then
Average price per kg = (4.5x + 5.25y) / (x+y) = 5
5x+5y = 4.5x+5.25y
0.5x = 0.25y
x/y = 1/2

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(2 Months ago) "Other"

Vinod and Seema, start running around a race track simultaneously. Vinod runs at a speed of 'S' kmph, while Seema runs at a speed of 'M' kmph. They meet for the first time when Vinod is in his third round. Which of the following can be the value of S:M
A) 11:6. B) 11:5. C) 17:8. D) 9:4

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(2 Months ago) "Other"

P can complete a piece of work in 20 days and Q in 30 days. P worked alone for 4 days and then Q completed the remaining work along with R in 18 days. In how many days can R working alone complete the work?

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(2 Months ago)

>total units of work 60(lcm of 20and 30)
>P will complete 3units/day (60/20)
>Q will complete 2units/day (60/30)
>In four days P will complete (4*3=12units of work out of 60 total units)
>Of the remaining 48 units of work (60-12) Q works for 18 days to complete (2*18=36units of work)
>Therefore units remaining for R to complete in 18 days is 12)
> So R will take 90 days to finish all the 60 units of the work >> (60*(18/12))

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(2 Months ago) "Other"

Water is flowing at the rate of 3km/hr. through a circular pipe 0f 20cm internal into a circular cistern of diameter 10m and depth 2m.In how much time will cistern will be filled?

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(2 Months ago) "Other"

Write an email to your HR, recommending a friend for a vacant post. Dont forget to mention the following.
To:
CC:
Subject:
Sign-off/ Signature:

You can also use some or all of the following phrases to draft your email.

Recommending - my friend Nitin - vacant post - Business Analyst - degree - work experience - pleasant person - good addition - team - resume.

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(2 Months ago) "Other"

4/5th of the voters in bellary promised to vote for sonia and the rest promised to vote for sushma. Of these voters, 10% of the voters who had promised to vote for sonia, did not vote on the election day, while 20% of the voters who had promised to vote for sushma did not vote on the election day. What is the total no. Of votes polled if sonia got 216 votes?

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(2 Months ago) "Other"

Numerical ability

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to (2 Months ago) "Other"

i want to question of amcat

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(2 Months ago)

I have full question bank. If you want to buy please mail me at mylifesavertech@gmail.com. I have all the study material of Quant, Logical, Comp, and Eng. I will share techniques to score more than 90 % in all these topics. 100% guaranteed result.

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to (2 Months ago) "Other"

a road construction agency takes up the work of making a road 189kms long in 15months.He engages 256men,but after 1/5th of the time,agency finds that only 1/6th of the work has been completed.How many more men should be employed to complete the work in time?

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(2 Months ago)

concept: Man*Day*Hour/Work = constant.
here, M=256, D= (1/5*15)=3, W= (1/6*189)= 31.5; m= m, d= 15-3= 12, w= 189-31.5= 157.5
(256*3)/31.5 = (m*12)/157.5
m = 320
More Men reqired = 320-256= 64

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to (2 Months ago) "Other"

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(2 Months ago) "Other"

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(3 Months ago) "Other"

An escalator is moving downwards. X takes 40 steps to reach the bottom from top and Y takes 60 steps to reach top from bottom. The speeds of X and Y are equal. What is number of steps on the escalator from bottom to the top?

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(3 Months ago) "Other"

25^26^27/11 find remainder

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(2 Months ago)

Remainder is 5. Use remainder theorem

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(3 Months ago) "Other"

Which of the following happens, when there is no attributes provided for form element? i.e.) …

Form submitted by get method and to the same program.

Form submitted by post method and to the same program.

Form will not be submitted

Form submitted by get method

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(3 Months ago) "Other"

In how many ways 5 first prize 7 second prize and 9 third prize can be arranged in a single line on a table if all first prize trophies are kept together second prize trophies are kept together and all third prize are kept together

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(3 Months ago) "Other"

function calculate( n )
{
if(n equals 5)
return 5
else
return (n + calculate(n-5))
end
}
Shishir calls the function by the statement, calculate(20). What value will the
function return?
Op 1: 50
Op 2: 200
Op 3: 35
Op 4: 20
Op 5:

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(3 Months ago) "Other"

best practice in maths

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(3 Months ago) "Other"

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(3 Months ago) "Other"

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