• Placement Questions

Placement Papers with Solutions

(#M40000891) TCS QUESTION BELL Keep an EYE

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

Solution

ans is d)16
take lcm of 2,4,6,8,10,12 seconds
the outcome is 120seconds.
thats at 2mins once it rings.
in 30mins it will rings 15times together
in 0th second all bells rings together.
so ans is 15+1=16.
This answer is given by ABHISHEK and is correct answer

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Asked In TCS sayantan tarafdar (14 years ago)

Solved suchandra raavi Read Solution (9)

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(#M40000890) TCS QUESTION PERMUTATION AND COMB. Keep an EYE

It is dark in my bedroom and I want to get two socks of the same color from my drawer, which contains 24 red and 24 blue socks. How many socks do I have to take from the drawer to get at least two socks of the same color?

Asked In TCS sayantan tarafdar (14 years ago)

Solved suchandra raavi Read Solution (7)

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(#M40000889) TCS QUESTION Keep an EYE

The pacelength P is the distance between the rear of two consecutive footprints. For men, the formula, n/P = 144 gives an approximate relationship between n and P where, n = number of steps per minute and P = pacelength in meters. Bernard knows his pacelength is 164cm. The formula applies to Bernard's walking. Calculate Bernard's walking speed in kmph.

a) 23.238 b) 8.78 c) 11.39 d) 236.16

Asked In TCS tk (14 years ago)

Solved Nirmal Bajpai Read Solution (4)

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(#M40000886) TCS QUESTION Base 8 Keep an EYE

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 buildings numbered 1 to 1000 in base 8. How many 3s are used in numbering these buildings?Express your answer in base 10
a) 54 b) 64 c) 265 d) 192

Asked In TCS suchandra raavi (14 years ago)

Solved Arghadeep Chaudhury Read Solution (11)

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(#M40000887) TCS QUESTION Keep an EYE

If a person moves 15km straight and turns 45 km right and moves 15Km staright then how much distance he

needs to walk to reach starting point??

Asked In TCS sayantan tarafdar (14 years ago)

Solved KALPANA G Read Solution (9)

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(#M40000882) TCS QUESTION Keep an EYE

10 men and 10 women are there, they dance with each other, is there possibility that 2 men are dancing with same women and vice versa?
a) 22 b) 20 c) 10 d) none

Asked In TCS Tanaya (14 years ago)

Solved Preeti Dhiman Read Solution (6)

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(#M40000884) TCS QUESTION factorial Keep an EYE

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

Solution

It should be a multiple choice question. Please provide options to get the solution of this problem

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Asked In TCS lokesh babu oblah (14 years ago)

Solved Read Solution (6)

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(#M40000880) TCS QUESTION Keep an EYE

Spores of a fungus, called late blight, grow and spread infection rapidly. These pathogens were responsible for the Irish potato famine of the mid-19th century. These seem to have attacked the tomato crops in England this year. The tomato crops have reduced and the price of the crop has risen up. The price has already gone up to $45 a box from $27 a box a month ago. How much more would a vegetable vendor need to pay to buy 27 boxes this month over what he would have paid last month?

Asked In TCS santhosh kumar (14 years ago)

Solved suchandra raavi Read Solution (11)

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(#M40000879) TCS QUESTION Keep an EYE

A number when divided by D leaves a remainder of 8 and when divided by 3D leaves a remainder of 21. What is the remainder left, when twice the number is divided by 3D?
a) 13
b) cannot be determined
c) 3
d) 42

Asked In TCS tk (14 years ago)

Solved Mithila Nand Jha Read Solution (9)

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(#M40000878) TCS QUESTION Keep an EYE

A boy wants to make cuboids of dimension 5m, 6m and 7m from small cubes of .03 m3. Later he realized he can make same cuboids by making it hollow. Then it takes some cubes less. What is the number of the cubes to be removed?
a) 2000 b) 5000 c) 3000 d) 7000

please explain

Solution

volume of the small cube = 0.03 m^3
so side of this cube = cubic root of 0.03 m^3 = .312 m
so after removing the outermost layer the dimensions for the inner cuboid will be (5-2*0.312), (6-2*0.312), (7-2*0.312)
so total volume will be (4.376)*(5.376)*(6.376) = 150 m^3
so no of cubes will be 150/0.03 = 5000
so we can remove 5000 inner cubes


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Asked In TCS bristi (14 years ago)

Solved Read Solution (5)

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(#M40000877) TCS QUESTION Keep an EYE

a hare & a tortoise have a race along a circle of 100 yards diameter.the tortoise goes in 1 direction & hare in another.after the tortoise has covered 1/5th of its distance & that is too leisurely.the hare & tortoise meet when the hare has covered only 1/8 th of the distance.by what factor should the hare increase its speed so as it to tie the race?
5
8
37.80
40

please explain

Solution

let total distance to cover=x
nw first tortoise goes x/5
after dat when they meet together,
hare goes x/8
and so tortoise goes x-(x/5+x/8)=27x/40
so, ratio of tortoise and hare=27x/40 : x/8=27:5
nw to tie up the incresed fctor of spped of hare be v
then,

(x/8)/27=(x-x/8)/5v
or, 1/27=7/5v
or, v=(27*7)/5=37.80

option (c) is correct
this answer is given by BISWAJIT DAS (6 MONTH AGO) and is correct answer

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Asked In TCS bristi (14 years ago)

Solved Read Solution (5)

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(#M40000876) TCS QUESTION Keep an EYE

anup managed to draw 7 circle of equal raddi with their centres on the diagonal of a square such that the two extreme circle touch two sides of the square and each middle circle touches two circle on other side.find the ratio of the radious of the circle to the side of the square.

(2+7root 2):1
1:(2+7root 2)
1:(2+6root 2)
1:(4+7root 3)

please explain

Solution

Draw an square, and make 7 circles in the diagonal in such a way that two corner circles could touch the two sides of the square.
Let the length of the side of the square and radius of the circle are respectively a and r. Then diagonal of the square = a(sqrt2)
since this diagonal contains 7 circles and a bit extra length in both the corners so relation will be
a(sqrt2) = r(sqrt2) + r + 2r*5 + r + r(sqrt2)
or a(sqrt2) = 2r(sqrt2) + 12r
or r/a = (sqrt2)/[2(sqrt2) + 12]
or r/a = 1/[2 + 6(sqrt2)]

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Asked In TCS bristi (14 years ago)

Solved Read Solution (3)

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(#M40000875) TCS QUESTION Keep an EYE

planet fourfi resides in 4 dimensional space & thus the currency used by its residents are 3 dimensional objects. The rupee are cubical in shape while their coins are spherical, however the coin minting machinery lays out some stipulations on the size of the coins. The diameter of the coins should be at least 64mm & not exceed 512 mm.
Given a coin,the diameter of the next larger coin is at least 50% greater then the diameter of the previous coin. All the diameters must always be an integer. You are asked to design a set of coins of different diameters with these requirements & your goal is to design as many as coin as possible.how many coins can you design?

a)9 b)5 c)6 d)8

please explain

Asked In TCS bristi (14 years ago)

Solved suchandra raavi Read Solution (4)

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(#M40000268) GMAT QUESTION Keep an EYE

If p and q are integers, such that p< 0< q, which of the following must be true?
I. 2p< 2q
II. p2< q2
III. p+q=0

Asked In GMAT neeraj (14 years ago)

Unsolved Read Solution (8)

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(#M40000873) TCS QUESTION Age Related Keep an EYE

There was a grandmother in a village who had a grandchild. Upon asking her grandchild's age she told dat she is as older as many days old as her daughter's age in weeks and as many days as her own age in years. The sum of the three is 130. then how old is the child?
a)7
b)8
c)6.5
d)7.5

Solution

this question is out of sense. But if we consider it as a question only then the answer by VICK is right.

This question can be changed in this manner -

There was a grandmother in a village who had two grandchild. Upon asking her younger grandchild's age she told that she is as older as many days old as her elder grandchild's age in weeks and as many days as her own age in years. The sum of the three is 130. then how old is the younger child?
answer:
grandmother age - 127 year.
elder grand child - 127 weeks ~ 2.5 year
younger child - 127 days ~ .5 year



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Asked In TCS Hiran Ram Babu O S (14 years ago)

Solved Read Solution (3)

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(#M40000870) TCS QUESTION Keep an EYE

After the typist writes 12 letters and addresses 12 envelopes, she inserts the letters randomly into the envelopes (1 letter per envelope). What is the probability that exactly 1 letter is inserted in an improper envelope?
a)1/12 b)0 c)12/212 d)11/12

Asked In TCS bristi (14 years ago)

Solved Dr.Dipin Singh Read Solution (10)

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(#M40000869) TCS QUESTION Keep an EYE

A sheet of paper has statements numbered from 1 to 40. For each value of n from 1 to 40,
statement n says "At least and of the statements on this sheet are true." Which statements are true and which are false?

a)The even numbered statements are true and the odd numbered are false.
b)The first 26 statements are false and the rest are true.
c)The first 13 statements are true and the rest are false.
d)The odd numbered statements are true and the even numbered are false.

please xplain properly.......

Asked In TCS bristi (14 years ago)

Unsolved Read Solution (11)

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(#M40000867) TCS QUESTION Keep an EYE

. Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side.
The number of 1-sets of P is denoted by n1(P). The minimum value of n1(P) over all configurations P of 5 points in the plane in general position(.i.e no three points in P lie on a line) is

a)3 b)5 c) 2 d)1

Solution

The meaning of this question is little complicated. In easy language the question should be:


There are some points in the plane. We have to make a separation between these points by forming a line in such a way that one point could be separate from the others. No 3 points are in a line. Maximum no of methods for plotting the line and minimum no of methods for plotting the line will be (arrangement of points is your choice)

Now Answer Is:

For Maximize: The number of methods, Points should be drawn in the circumference of the CIRCLE So answer would be the number of total point in the plane.

For minimize: The number of methods we should draw 3 points in a TRIANGLE and all other point inside this triangle in such a way that no 3 points could be in a line.

If it will be allowed to draw the points in a line then minimum possibilities will be 2 only, because if we take all points in a line then you can separate only the corner points from the others.

For example
If we have 10 points then maximum possibilities = 10
and minimum = 3

similarly for 5 points
Max = 5, Min = 3

for 19
max= 19 Min = 3


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Asked In TCS purba das (14 years ago)

Solved Read Solution (6)

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(#M40000866) TCS QUESTION Keep an EYE

36 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the rest have shaken hands with at least one person in the set is
a) 13 b) 18 c) 11 d) 12

Solution

Answer 12 is correct.
because if we take person a1 in the set then it will cover a36 and a2 for shaking hand.similarly if we take person a4 in the set then it will cover a5 and a3 for shaking hand and so on, so minimum 12 persons are required to make shake hand with rest of the people complete


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Asked In TCS bristi (14 years ago)

Solved Read Solution (6)

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(#M40000861) TCS QUESTION Keep an EYE

. A boy wants to make cuboids of dimension 5m, 6m and 7m from small cubes of .03 m3. Later he realized he can make same cuboids by making it hollow. Then it takes some cubes less. What is the number of the cubes to be removed?
a) 2000 b) 5000 c) 3000 d) 7000

Solution

volume of the small cube = 0.03 m^3
so side of this cube = cubic root of 0.03 m^3 = .312 m
so after removing the outermost layer the dimensions for the inner cuboid will be (5-2*0.312), (6-2*0.312), (7-2*0.312)
so total volume will be (4.376)*(5.376)*(6.376) = 150 m^3
so no of cubes will be 150/0.03 = 5000
so we can remove 5000 inner cubes


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Asked In TCS Akeefar (14 years ago)

Solved Read Solution (6)

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(#M40000860) TCS QUESTION Keep an EYE

. In a market 4 men are standing .The average age of the four before 2 years is 55, after some days one man is added and his age is 45. What is the average age of all?
a) 55 b)54.5 c)54.6 d)54.7

Asked In TCS Akeefar (14 years ago)

Unsolved Read Solution (6)

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(#M40000859) TCS QUESTION apptitude Keep an EYE

Six bells commence tolling together and toll at intervals of 2, 4, 6, 8 10 and 12 seconds respectively. In 30 minutes, how many times do they toll together ?

Asked In TCS srinivas velishetti (14 years ago)

Solved seashell Read Solution (5)

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(#M40000858) TCS QUESTION Keep an EYE

The ticket for a journey is in the range of 1 to 63 paise.
You have 63 paise in your pocket and so on. And the question is you have to change the money into coins and all denominations are available. At final you have to buy the ticket and you should have at least one coin?(

Asked In TCS Bhavani (14 years ago)

Solved Raman Read Solution (7)

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(#M40000857) TCS QUESTION Keep an EYE

you hav coins of all dimensions. You need to provide exact change at the counter. You have 155p coin. In how many parts will u divide this so that u will provide the exact change required and carry as less coins as possible?

Asked In TCS Bhavani (14 years ago)

Solved viknesh sankar Read Solution (3)

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(#M40000855) TCS QUESTION Keep an EYE

49 members attended the party. In that 22 are males, 17 are females. The shake hands between males, females, male and female. Total 12 people given shake hands. How many such kinds of such shake hands are possible?

Asked In TCS Bhavani (14 years ago)

Solved Saptarshi Ghosh Read Solution (5)

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(#M40000854) TCS QUESTION Keep an EYE

There are 6561 balls out of them 1 is heavy. Find the min. no. of times the balls have to be weighedfor finding out the heavy ball.

Asked In TCS Bhavani (14 years ago)

Solved veerbahadur gupta Read Solution (4)

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(#M40000851) TCS QUESTION Keep an EYE

A hunter leaves his cabin early in the morning and walks one mile due south. Here he sees a bear and starts chasing it for one mile due east before he is able to shoot the bear. After shooting the bear, he drags it one mile due north back to his cabin where he started that morning. What color is the bear?
a)black
b)grey
c)white
d)brown

Asked In TCS Bhavani (14 years ago)

Unsolved Read Solution (12)

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(#M40000850) TCS QUESTION Puzzle tcs recent paper Keep an EYE

There are certain number of hats and gloves in a box.They are of 41 red,23 green,11 orange.Power gone but a woman can differentiate between hats and gloves.How many draws are required to obtain a pair of each color?

Asked In TCS Rupkatha Nag (14 years ago)

Solved suchandra raavi Read Solution (9)

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(#M40000849) TCS QUESTION Keep an EYE

Smita was making a cube with dimensions 5*5*5 using 1*1*1 cubes. What is the number of cubes needed to make a hollow cube looking of the same shape?
a) 98 b) 104 c) 100 d) 61

Asked In TCS purba das (14 years ago)

Solved Hiran Ram Babu O S Read Solution (10)

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(#M40000846) 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?

Asked In TCS purba das (14 years ago)

Solved Bhavani Read Solution (2)

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