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Placement Papers with Solutions

(#M40000581) TCS QUESTION Keep an EYE

There are two box,one containing 10 red balls and the other containing 10 green balls. You are allowed to move the balls between the boxes so that when you choose a box at random and a ball at random from the chosen box, the probability of getting a red ball is maximized. This maximum probability is
a) 3/4
b) 37/38
c) 1/2
d) 14/19

Asked In TCS Sumandeep Ghosh (14 years ago)

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(#M40000580) TCS QUESTION Keep an EYE

A hollow cube of size 5 cm is taken, with a thickness of 1 cm. It is made of smaller cubes of size 1 cm. If 4 faces of the outer surface of the cube are painted, totally how many faces of the smaller cubes remain unpainted?
a) 800
b) 488
c) 900
d) 500

plz explain answer

Asked In TCS Sumandeep Ghosh (14 years ago)

Solved ram Read Solution (5)

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(#M40000579) TCS QUESTION Keep an EYE

On the planet Oz, there are 8 days in a week- Sunday to Saturday and another day called Oz day. There are 36 hours in a day and each hour has 90 min while each minute has 60 sec. As on earth, the hour hand covers the dial twice every day. Find the approximate angle between the hands of a clock on Oz when the time is 12:40 am.
a) 71
b) 251
c) 111
d) 89

Solution

Since total hours in a day = 36 and
as on earth, the hour hand covers the dial twice every day.
so there will be 18 numbers from 1 to 18 in the clock.
when the time will be 12:40(hands will be at 12 and 8 marks in the clock), two hands of the clock will make an angle of 20*4 = 80 degree, here 20 is the angle between two numbers in the clock.
now for 80 min, advancement of the hour hand will be (20/90)*40 = 80/9
so total angle = 80 + (80/9) = 800/9 = 88.889 degree
if we consider the obtuse angle, then it will be 360-88.889 = 271.111 degree

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Asked In TCS Sumandeep Ghosh (14 years ago)

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(#M40000578) TCS QUESTION Popability Keep an EYE

A lady has fine gloves and hats in her closet- 18 blue, 32 red, and 25 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that it is a glove. How many gloves must she take out to make sure she has a pair of each color?
a) 50
b) 8
c) 60
d) 42

Solution

It is not given that how many of these items are gloves and how many are hats, if we consider that all the items are gloves then according to my opinion 32+25+2 = 59 gloves, she must take out to make sure she has a pair of each color. But closest option is 60 so it will be the answer

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Asked In TCS prudhvi Gowtham (14 years ago)

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(#M40000577) TCS QUESTION Keep an EYE

Alok and Bhanu play the following min-max game.Given the expression

N=26+X(Y-Z)

Where X,Y and Z are variables representing single digits (0 to 9).Alok would like to maximize N,while Bhanu would like to minimize it . Towards this end,alok chooses a single digit number and bhanu substitutes this for a variable of her choice (X,Y and Z).Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable.Assuming both play to their optimal strategies, the value of N at the end of the game would be

a)-55
b)107
c)44
d)26

Asked In TCS YadeeshKumar (14 years ago)

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(#M40000576) TCS QUESTION Keep an EYE

30 teams enter a hockey tournament.A team is out of the tournament if it loses 2 games. What is the maximum number of games to be played to decide one winner?
a) 61
b) 59
c) 30
d) 60

Asked In TCS YadeeshKumar (14 years ago)

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(#M40000563) IBM QUESTION room volume Keep an EYE

A room has 50 m length, 30 m width and 720 cm height. Then what is the volume?

Asked In IBM Aditi Sharma (14 years ago)

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(#M40000562) IBM QUESTION work problem Keep an EYE

Person A can finish 2/5 of work and person B can finish 3/5 of work. If A completed some 1/9 of his work and B completed 5/18 of his work. what fraction of work is not yet completed by both?

Asked In IBM Aditi Sharma (14 years ago)

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(#M40000561) IBM QUESTION Printer puzzle Keep an EYE

A printer started its work at 8.15 a.m and ended its work at 9.20 p.m. It was interrupted twice for the time duration of 42 min. It can print 100 instructions per hour. Approximate how many instructions it can print?

Asked In IBM Aditi Sharma (14 years ago)

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(#M40000554) INFOSYS QUESTION big cube infosys puzzle Keep an EYE

A big cube painted red on all the sides. It was cut into 27 smaller cubes by 6 straight lines. How many of the smaller cubes painted on all 3 sides, on 2 sides, on 1 side and no faces painted?

Asked In Infosys Aditi Sharma (14 years ago)

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(#M40000553) INFOSYS QUESTION cycling race puzzle Keep an EYE

A person took part in a cycling race with many others. After pedaling for several minutes, he found that 1/5 th of the racers ahead of him and 5/6 th of the cyclist behind him together formed the total number of participants. How many people participated in the race?

Asked In Infosys Aditi Sharma (14 years ago)

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(#M40000552) INFOSYS QUESTION Solve for X Keep an EYE

(X)^1/3-(X)^1/9=60

Asked In Infosys Aditi Sharma (14 years ago)

Solved mukesh ranjan mallick Read Solution (3)

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(#M40000184) GENERAL QUESTION Keep an EYE

At University of Probability, there are 375 freshmen, 293 sophomores, 187 juniors, & 126 seniors. One student will randomly be chosen to receive an award. What percent chance is there that it will be a junior? Round to the nearest whole percent

Asked In general Naveen (14 years ago)

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(#M40000183) GENERAL QUESTION Keep an EYE

There are 4 mugs placed upturned on the table. Each mug have the same number of marbles and a statement about the number of marbles in it. The statements are: Two or Three, One or Four, Three or One, One or Two.

Only one of the statement is correct. How many marbles are there under each mug?

Asked In general Naveen (14 years ago)

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(#M40000182) GENERAL QUESTION Keep an EYE

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.
What is the sum of the three digits?

Asked In general Naveen (14 years ago)

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(#M40000181) GENERAL QUESTION Keep an EYE

There are 3 persons X, Y and Z. On some day, X lent tractors to Y and Z as many as they had. After a month Y gave as many tractors to X and Z as many as they have. After a month Z did the same thing. At the end of this transaction each one of them had 24.

Find the tractors each originally had?

Asked In general Naveen (14 years ago)

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(#M40000179) GENERAL QUESTION Keep an EYE

There are 20 people in your applicant pool, including 5 pairs of identical twins.
If you hire 5 people randomly, what are the chances you will hire at least 1 pair of identical twins? (Needless to say, this could cause trouble

Asked In general Naveen (14 years ago)

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(#M40000178) GENERAL QUESTION Keep an EYE

How many possible combinations are there in a 3x3x3 rubics cube?
In other words, if you wanted to solve the rubics cube by trying different combinations, how many might it take you (worst case senerio)?
How many for a 4x4x4 cube?

Asked In general Naveen (14 years ago)

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(#M40000548) TCS QUESTION cuboid to cube Keep an EYE

Leena cut small cubes of 3 cubic cm each. She joined it to make a cuboid of length 10 cm, width 3 cm and depth 3 cm. How many more cubes does she need to make a perfect cube?

Solution

volume of small cube = 3 cm^3
so its side = 3^(1/3) , it is a fractional no. so how can you make a cuboid of length 10 cm. data are wrong
please send correct question for solution

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Asked In TCS gokul sridhar (14 years ago)

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(#M40000547) TCS QUESTION probability Keep an EYE

A lady has fine gloves and hats in her closet- 18 blue, 32 red, and 25 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that it is a glove. How many gloves must she take out to make sure she has a pair of each color?

Solution

It is not given that how many of these items are gloves and how many are hats, if we consider that all the items are gloves then according to my opinion 32+25+2 = 59 gloves, she must take out to make sure she has a pair of each color.

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Asked In TCS Divya. R (14 years ago)

Solved Read Solution (5)

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(#M40000546) SELF QUESTION Keep an EYE

A circular dartboard of radius 1 foot is at a distance of 20 feet from you. You throw a dart at it and it hits the dartboard at some point Q in the circle. What is the probability that Q is closer to the center of the circle than the periphery?
a) 0.75
b) 1
c) 0.25
d) 0.5

Sayan Bera (14 years ago)

Solved S Ranjith Kumar Read Solution (2)

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(#M40000544) TCS QUESTION maths Keep an EYE

1! + 2! + 3!...... + 50!=?

Asked In TCS Manikanta (14 years ago)

Unsolved Read Solution (8)

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(#M40000541) TCS QUESTION Keep an EYE

If we subtract a number with y, we get 4 increase of number, once it got divided by y itself... Find that number??
a) 13
b) 12
c) 14
d) 11

Solution

answer by MONISHA and VADIVELAN M both are correct. the number will be 12 and 2 possibilities for the value of y are there . these are 6 ,2

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Asked In TCS Karthik (14 years ago)

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(#M40000543) TCS QUESTION APTI Keep an EYE

the cost of manufacturing a popular model car is made up of three items:cost of raw material,labour and overheads- in a year the cost of three items were in the ration of 4:3:2.next year the cost of the raw material rose by 10% ,labour cost increased by 8% but overhead reduced by 5%.then %increase int the price of the car ?
a)7.67%
b)6%
c)0.54%
d)9.54%

Asked In TCS sundar ganesh (14 years ago)

Solved mukesh ranjan mallick Read Solution (5)

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(#M40000542) TCS QUESTION Keep an EYE

Entry ticket to an exhibition ranges from 1p to 31p. You need to provide exact change at the counter. You have 31p coin. In how many parts will u divide 31p so that u will provide the exact change required and carry as less coins as possible?
option
a) 4
b) 5
c) 6
d) 7

Asked In TCS Karthik (14 years ago)

Solved Dr.Dipin Singh Read Solution (7)

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(#M40000540) TCS QUESTION Keep an EYE

If a pipe can fill the tank within 6hrs. But due to leak it takes 30 min more. Now the tank is full then how much time will it take to empty the tank throught the leak.?
a) 78
b) 56
c) 66
d) 59

Asked In TCS Karthik (14 years ago)

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(#M40000539) TCS QUESTION apti Keep an EYE

for the king's revelry 126 barrels of beer have been ordered. however , it was found that one of them is poisoned.the poison takes effect even if consumed in the tiniest

Asked In TCS pradeep (14 years ago)

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(#M40000538) OTHERS QUESTION coding Keep an EYE

Write a function which returns the most frequent number in a list of integers. Handle the case of more than one number a function input(int[] array) was given and we had to enter any number and the entered no. should convert into absolute no like 4578, 6789 , 1234 etc means the no should convert into increasing nos.

Asked In Others neha (14 years ago)

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(#M40000454) TCS QUESTION Keep an EYE

Out of 7 children the youngest is boy then find the probability that all the remaining children are boys
a) 1/64
b) 1/32
c) 1/128
d) 1/256

Asked In TCS (14 years ago)

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(#M40000453) TCS QUESTION Keep an EYE

Susan made a block with small cubes of 8 cubic cm volume to make a block ,3 small cubes long, 9 small cubes wide and 5 small cubes deep. She realizes that she has used more small cubes than she really needed. She realized that she could have glued a fewer number of cubes together to lock like a block with same dimensions, if it were made hollow. What is the minimum number of cubes that she needs to make the block?
option
a) 114
b) 135
c) 21
d) 71

Asked In TCS (14 years ago)

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