Wednesday 10 June 2015

11.06.15

Bulbuul Dev's photo.
  • Nikola Djuric 1+1/2²+1/3²+1/4²+...-2*1/2²(1+1/2²+1/3²+...)=(1+1/2²+1/3²+...)*0.5=PI²/12
    1 hr · Like · 1
  • Bulbuul Dev What you did dude? 

    I hope you added a set of 1/2^2 + 1/4^2 + ... 
    ...See More
    1 hr · Like
  • Nikola Djuric 1+1/2²-2*1/2²+1/3²+1/4²-2*1/4²+...=1+1/2²+1/3²+1/4²+...-2*1/2²(1+1/2²+1/3²+...)=(1+1/2²+1/3²+...)*(1-2*1/2²)=PI²/12
    1/(2k)²=1/2²*(1/k²)
    55 mins · Edited · Like · 1
  • Tanveer Iqbal Ahmed
    Write a comment...

1 min problem

Nirman Dutta's photo.
OLDER

Given that Q =1!+ 2!+ 3!+ 4!+ ......+ (n -1)!+ n!. For how many values of 'n', Q is a perfect square?

a. 1 b. 2 c. 3 d. 4 e. More than 4

Find the minimum value of x/(x^2+5x+1) ,where x is positive real number .

The HCF of (n + 3) and (7n + 48) is 'k', where 'n' is a natural number. How many values of 'k' are possible?

a. 4 b. 5 c. 1 d. 2 e. 3

‪#‎CATlevel‬ 
In how many ways, 729 can be expressed as a difference of 2 squares?

The smallest number divisible by 3, 5 and 7 and also the sum of the digits divisible by 3 , 5 and 7 is made up of how many different digits ?

(a) 3 (b) 4 (c)5 (d) None of these

Q. In how many ways can A, B, C, D, E, F be seated if a & b can not be seated next to each other? 
N.B. Details Needed

Bijit Saha's photo.

‪#‎Must_Try‬ ‪#‎CAT_Level‬ ‪#‎Number_System‬ ‪#‎Conceptual‬

99. If a natural number N is divided by 5*M & 9*M remainders are 280 & 640. Then how many values of M be possible (where M is also a natural number)

a. 24 ...

See More

Answer the question based on the passage given below.

Psychologists say that holding onto our good memories - and leaving the bad ones behind - helps us to deal with unpleasant situations and retain a positive outlook on life. It was 80 years ago that the idea of negative memories fading faster was first proposed. Back in the 1930s psychologists collected recollections about life events like people's holidays - marking them as pleasant or unpleasant. Weeks later an unannounce...

See More
The 2-minute noodle, Maggi, got its goose cooked in as much time, when Nestle decided to stay mum during a crisis of mammoth proportions.
Like · Comment · Share

(CAT exam)

A. Although there are large regional variations, it is not infrequent to find a large number of people sitting here and there and doing nothing.

B. Once in office, they receive friends and relatives who feel free to call any time without prior appointment.

...See More

‪#‎CATlevel‬
How many integers 'n' are there between 0 and 10^99 ,such that the unit digit of n^3 is 1?

The sum of eight three-digit consecutive even numbers is S. When S is divided by 5, it results in a perfect cube. How many sets of such eight numbers are possible?

(a) 1 (b) 2 (c) 3 (d) 4

if ab-b+1 =0 
bc -c +1 =0
a-ac = ?
1
2...

See More

‪#‎Easy‬#
‪#‎Numbers‬#
Find number of trailing zeros in 80C16.

Q. The length of a rectangle is increased by 25%, By what percentage should the width be decreased so that the area of the rectangle remains unchanged ?
N.B. Details Explanation Needed

What should be the level or type of questions to be posted in group ?

The pesent level which is being posted is fine
Higher
Lower than the present level

Q. A cube of side 5cm is painted on all its side. if it is sliced into 1 cubic centimeters cubes, how many 1 cubic centimeter cube will have exactly one of their sides painted?

‪#‎pc‬ Choose the one that completes the sentence.

Life in ancient times was full of risks and uncertainty for those people living there. Much trust was put in the unknown, but as civilizations progressed, there was a feeling of need to understand the unknown and the meaning of life. Within this paper three important issues that deal with the progress of life in relation to the civilizations of the Mesopotamian, Egyptians, Hebrews and Greeks. In ancient civilizations of conc...

See More
Rahul Sanghi shared his photo.
Rahul Sanghi's photo.

A thief steals half the total no of loaves of bread plus 1/2 loaf from a bakery. A second thief steals half the remaining no of loaves plus 1/2 loaf and so on. After the 5th thief has stolen there are no more loaves left in the bakery. What was the total no of loaves did the bakery have at the beginning

22nd

Lovey Choudhary's photo.

Guys plz method k sath ans Dena.. 19)B
20)C

Raj Thakkar's photo.

Q.when the price of petrol in increased by 5%, a driver reduces her annual distance travelled by 5%. As a consequence, she find that she saves $1 on her annual petrol bill. What was her annual petrol bill before the increase?

Raman Sharma's photo.

The recent disturbances in the country will __________ and peace will be restored.
a. blow past
b. blow over
c. pass through
d. come to pass

‪#‎CATlevel‬
if n = 1+x where x is the product of 4 consecutive number then n is,
1) an odd number
2) is a perfect square
3) both...

See More

Choose correct option .. smile emoticon

Narendra Kumar's photo.

Ok ! I am completely lost . I was midway solving a puzzle & boom it disappears...i have been trying to find it for almost 20 mins now on this page...Can someone pls tag me in that post if you are at it currently? The question goes like :
What pattern do you see in here?

3+5+6=151872
5+5+6=253094...

See More

Is RoI a flawed concept of evaluating B Schools?

http://www.careeranna.com/…/Return-on-Investment-(ROI):-A-F…

A disc having diameter 4 m is lying horizontally on a floor. A long straight thin rod is also lying on the same floor horizontally near the disc. An ant starts moving along the circumference at a speed of one revolution per minute. It starts from the point on the circumference of the disc which is farthest from the rod. The time taken by it to cover a distance of 3 m towards the rod (had there been a straight line path from the ant's initial position to the rod) is..........?

‪#‎CATlevel‬ 
What is the sum of all irreducible factors between 10 and 20 with denominator as 3?

‪#‎CATlevel‬
In how many ways can 2310 be expressed as a product of 3 factors?

Could anyone help me in solving this equation???

Rahul Kumar Singh's photo.

‪#‎wonderful_questions‬
A cylindrical hole 10 m long is drilled through centre of solid sphere, volume of remaining sphere?
a) pi 10^3 /6 
b) pi 10^3 / 3
C) data insufficient...

See More

‪#‎CATlevel‬ 
4) x + y + z = 7 and xy + yz + zx = 10, then what is the maximum value of x? ( CAT 2002 has similar question )

‪#‎CATlevel‬ 
find the number of zeroes in 1^1* 2^2* 3^3* 4^4.............. 98^98* 99^99* 100^100

‪#‎CATlevel‬
What does 100 stand for if 5 X 6 = 33

‪#‎TSD‬

Q1A. Trains are moving from A to B and B to A at a regular interval of 1 hour. They complete their journey in 5 hrs. How many trains coming from station B will cross the train coming from station A that started at 10.a.m.? Assume the trains start from both the stations at the same time.

Q1B. In above question, if there is a time gap of half an hour between the trains starting from the two respective stations, then how many trains coming from station B will cross a tra...

See More

Find the radius of smallest circle in terms of the side of the square.

Raman Sharma's photo.

Post Your Answers..

LST Bhilai's photo.

Post Your Answers..

‪#‎CATlevel‬
when a number is divided by 11,7,4 the reminders are 5,6,3 respectively. what would be the reminders when the same number is divided by 4,7,11 respectively?

Indrajeet Singh's photo.

approach pls
a man rows to a place distant 48 km and come back in 14 hrs. he finds that he can row 4 km down the stream in the same time as 3 km against the stream. the rate of stream is??

2 Din me 2 BAN
koi bhi bakwaas post aaye .. just tag me (or any admin)..
30 din me 100 ban ka target hai tongue emoticon

Raman Sharma's photo.

f(x)f(y) = f(x+y) 
If f(1) = 0.3333333…………
Value of 
f(1) +f(3)+f(5)+…………up to …infinity

1111111...... 119 times 1 is it a prime number or not ?, I have answer but i need detail explanation. thnx in advance

Raman Sharma's photo.

‪#‎CATlevel‬
The reminders when 3 numbers 1221, 1331, 1441 are divided by certain number 9 are 6, 8, 1 respectively. What would be the reminder when you divide 3993 with 9?

Guys. I am planning to give away my CAT preparation materials.

Below are the list of stuffs

1. IMS 2014 Reference Materials...

See More

plz. solve it & give me right answer of this question .
A girl of height 90 cm. is walking away from the base of a lamp post at the speed of 1.2m/s. if the lamp is 3.6m above the ground, find the length of her shadow after 4s.

a hostel has provision fr 250 students fr 30days, after 5 days 25 more students were admitted, again after 10 days 25 left hostel, hw long will the remaining provisions survive??

A must watch video for all CAT 2015 aspirants. I will keep uploading more videos on core Quant and Verbal concepts on my Youtube channel. Subscribe to keep in touch.

A video worth watching for all CAT aspirants out there. Is CAT really a Mathematics test? Is it a test of English? Not really. Watch this short video to disc...
Like · Comment · Share
Shukla Prakhar's photo.
Lazy Lad's photo.
Shukla Prakhar's photo.

1). Nonetheless, Tocqueville was only one of the first of a long line of thinkers to worry whether such rough equality could survive in the face of a growing factory system that threatened to create divisions between industrial workers and a new business elite.

2)."The government of democracy brings the nation of political rights to the level of the humblest citizens. He wrote ," Just as the dissemination of wealth brings the notion of property within the reach of all the mem...

See More
Anuj Kumar Sinha's photo.
Anuj Kumar Sinha's photo.
Anuj Kumar Sinha's photo.
Anuj Kumar Sinha's photo.

‪#‎CATlevel‬ 
How many times the digit 0 will appear from 1 to 10000

(CAT exam)

A. But in the industrial era destroying the enemy's productive capacity means bombing the factories which are located in the cities.

B. So in the agrarian era, if you need to destroy the enemy's productive capacity, what you want to do is bum his fields, or if you're really vicious, salt them.

...See More

teaching experience in ITI as a instructor ....

is it will be considered in iim admission and it it gives help me in getting admission my overall achievents are 75% till b.tech

  • Prashant Singh Chauhan I don't think so. They look for core experience. IIM also has one more parameter work experience quality.
    5 hrs · Like
  • Tanveer Iqbal Ahmed
    Write a comment...
Karan Agarwal's photo.
Karan Agarwal's photo.
  • Tanveer Iqbal Ahmed
    Write a comment...
Narendra Kumar's photo.

‪#‎easy‬ A teacher asks one of her students to divide a 30-digit number by 11. The number consists of six
consecutive 1's, then six consecutive 2's, and likewise six 3's, six 4's and six 7's in that order from
left to right. The student inserts a three-digit number between the last 4 and the first 7 by mistake
and finds the resulting number to be divisible by 11. Find the number of possible values of the
three-digit number....

See More

Q. Direct distances from A to B, B to C, and C to A are 12, 5, and 13 meters respectively. What is the closest distance (in meters) from the point C to any point on the line segment AB ?

Q. The lengths of the two sides of a parallelogram are 30 unit & 26 unit .Its smaller diagonal is 28 unit, find the length of the other diagonal.

The 23rd term and the 32nd term of a geometric progression are the number of factors of 54 and 72
respectively. What is the geometric mean of the first 54 terms of the progression?
(a) 4 root3 (b) 6root2 (c) 8root 3 (d) 4root 6

Identity the correct sentence/s smile emoticon

Narendra Kumar's photo.

‪#‎CATlevel‬
If x=(a-1)(b-2)(c-3)(d-4)(e-5), where a,b,c,d,e are distinct natural numbers less than 6. If x is non zero integer, then the number of sets of possible values a,b,c,d and e are

In how many ways can be the letters of AABACUS be rearranged so that all vowels are together?

We bring to you what to expect in CAT 2015, based on the analysis of Past CAT Papers set by IIM Ahmedabad, including but not limited to CAT 2009.

Like · Comment · Share
Mukul Sonker's photo.

‪#‎CATlevel‬
Two different two-digit natural numbers are written beside each other such that the larger number is written on the left. When the absolute difference of the two numbers is subtracted from the four-digit number so formed, the number obtained is 5481. What is the sum of the two two-digit numbers?

Two horses are tethered at diagonally opposite corners of a square field of area 96 m2 by ropes of
length 8 m each. Find the approximate area (in m2) inside the field that cannot be grazed by the
horses.
(a) 6 (b) 7 (c) 33 (d) 55

‪#‎CATlevel‬
When 987 and 643 are divided by same number 'n' the reminder is also same, what is that number if the number is a odd prime number?

koi lr group hai

No comments:

Post a Comment