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Placement Papers with Solutions

(#M40009646) SELF QUESTION Keep an EYE

let S is a set of all natural numbers less than 120 such that HCF of any element in S and 120 is 1. Find the sum of all elements in S?

A. 7640 B. 6460
C. 7240 D. 6780

xyz (13 years ago)

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(#M40007768) SELF QUESTION Keep an EYE

n an exam, 5% applicants were ineligible and 85% of eligible belonged to A category. If 4275 eligible belong to other categories, how many applied?

* 30000
* 35000
* 20000
* 40000

xyz (13 years ago)

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(#M40007751) SELF QUESTION Keep an EYE

1. What is the length of the longest rod that can be placed in a room 10m long, 6m broad and 4m high?


a. 7.21 m
b. 8.32 m
c. 10.91 m
d. 12.33 m

xyz (13 years ago)

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(#M40002608) TCS QUESTION Keep an EYE

Given 3 lines in the plane such that the points of intersection from a triangle with sides of length 20, 20 and 31, the number of points equidistant from all the 3 lines is

• 4
• 3
• 0
• 1

Asked In TCS xyz (14 years ago)

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(#M40002597) TCS QUESTION Keep an EYE

.Leena cut small cubes of 10 cubic cms each. Which she joined to form a cube wit 10 cubes length, 5 cubes in depth and 5 cubes wide. How many more small cubes does she require to form a perfect cube?

Asked In TCS xyz (14 years ago)

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(#M40002591) TCS QUESTION Keep an EYE

(209*144)^2 + (209*209)+(209*144)+(144*144) = ?
a)905863729 b)905368729 c)905729368 d)65

Solution

put x=209 and y=144
so eqn becomes:(xy)^2+x^2+y^2+xy
therefore,(x+y)^2-xy+(xy)^2
=(x+y)^2+xy(xy-1)
=(353)^2+144*209(144*209-1)
=905863729
This answer is given by NISHANT NANDAN and is correct answer

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Asked In TCS xyz (14 years ago)

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(#M40002557) TCS QUESTION 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 xyz (14 years ago)

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(#M40002554) TCS QUESTION Keep an EYE

If there are 30 cans out of them one is poisened if a person tastes very little he will die in exactly 14 hours so if there are mice to test and 24 hours to test, how many mice's are required to find the poisoned can?
a) 3
b) 2
c) 6
d) 1

Asked In TCS xyz (14 years ago)

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(#M40002553) TCS QUESTION Keep an EYE

If there are 30 cans out of them one is poisoned if a person tastes very little he will die "WITHIN" 14 hours so if there are mice to test and 24 hours to test, how many mices are required to find the poisoned can?
a) 3 b) 2 c) 6 d) 1

Solution

If mouse would die exactly after 14 hrs then definitely 1 will be the answer but here the given condition says that mouse will die within 14 hrs.
so this question will be solved by set theory.
answer is following
total beer bottles = 6
drinking strategy
bottle1 : mouse1
bottle2 : mouse2
bottle3 : mouse3
bottle4 : mouse1 and mouse2
bottle5 : mouse2 and mouse3
bottle6 : mouse3 and mouse1
on the basis of death of mice set we can decide the poisoned bottle

in this question upto 2 bottle answer will be 1 because 2^1 = 2
similarly upto 4 bottles answer will be 2 because 2^2 = 4
for upto 8,16,32,64,128 bottles answer will be 3,4,5,6,7

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Asked In TCS xyz (14 years ago)

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(#M40002524) TCS QUESTION Keep an EYE

Lady have 2 select gloves&hat from a basket I the dark. she can distinguish hat&gloves.14red,20blue,18green r there. Find probability that any selected glove pair has same color.

Asked In TCS xyz (14 years ago)

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