• Placement Questions

Frequently Asked Interview Questions and Answers

(#M40001768) SELF QUESTION Mayank Tiwari09 January Keep an EYE

New town is straight to the north of New york. A high way M runs from newtown making an angle of 61 degree south east. from newyork there is also an high way N which runs Northeast 61 degrees. If high ways M and N are straight then findout the acute angle made at their intersection point.

Aashu (14 years ago)

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(#M40001760) SELF QUESTION Mohammad Faraz18 January 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?

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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Aashu (14 years ago)

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(#M40001757) SELF QUESTION Noor Fatima19 January Keep an EYE

if there are 30 cans out of them one is poisened 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 poisened can?
A)3 B)2 C)6 D)1

Aashu (14 years ago)

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(#M40001756) SELF QUESTION Rohit Verma19 January Keep an EYE

The bacteria have the probability of split into 3 and probability to die is 1/3rd of the total bacteria. Let the probability is P. Some of them survived with probability 1/5.Then which among the following relation is true?
a)P=1/3+1/5*3 b)P=1/5*(1/8-3)

Solution

Question is not written in a correct language
Here in the question "Let the probability is P." is meaningless, because for which event probability is given, is not known.
Dear Aashu, please submit the exact question for getting a response by admin. Thanks


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Aashu (14 years ago)

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(#M40001755) SELF QUESTION Zoya Husain20 January Keep an EYE

If we subract a number with y, we get 4 increase of number, once it got divided by y itself.. Find that number??

wht will be d equation???

Aashu (14 years ago)

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(#M40001754) SELF QUESTION Shafiur Rahman20 January 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?

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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Aashu (14 years ago)

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(#M40001720) TCS QUESTION question 2010 Keep an EYE

A Roman was born the first day of the 35th year before Christ and died the first day of the 35th year after Christ. How many years did he live?
(a) 70 (b) 69 (c) 71 (d) 72

Solution

A Roman was born the first day of the 35th year before Christ means before the start of year 0, 35 years has been past and died the first day of the 35th year after Christ means 35th year is about to start at his death so only 34 years has been completed so total years = 69


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Asked In TCS (14 years ago)

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(#M40001715) TCS QUESTION latest puzzle Keep an EYE

Given 3 lines in the plane such that the points of intersection form a triangle with sides of length 20, 20 and 30, the number of points equidistant from all the 3 lines is
a) 1 b) 3 c) 4 d) 0

Solution

Answer will be (c)
There will be four points satisfying the given condition
one point will be incentre of the circle and other three will be excentres

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Asked In TCS (14 years ago)

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(#M40001707) TCS QUESTION 2010 question Keep an EYE

On planet korba, a solar blast has melted the ice caps on its equator. 9 years after the ice melts, tiny planetoids called echina start growing on the rocks. Echina grows in the form of circle, and the relationship between the diameter of this circle and the age of echina is given by the formula d = 4*(t-9) for t>9, where d represents the diameter in mm and t the number of years since the solar blast. Jagan recorded the radius of some echina at a particular spot as 7mm. How many years back did the solar blast occur?
a) 17 b) 21.25 c) 12.25 d) 14.05

Solution

some fonts in the question are meaningless, so it is difficult to understand the meaning clearly. If we consider the meaning as d = 4*(t-9) then according to the given condition r = 7 mm so diameter = 14 mm, on putting d = 14, we get
14 = 4*(t-9) or 3.5 = t-9 or t = 12.5

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Asked In TCS (14 years ago)

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(#M40001699) TCS QUESTION latest puzzle Keep an EYE

There are two pipes A and B. If A filled 10 liters in an hour, B can fill 20 liters in same time. Likewise B can fill 10, 20, 40, 80, 160. If B filled 1/16 of a tank in 3 hours, how much time will it take to fill the tank completely?
a) 9 B) 8 c) 7 d) 6

Asked In TCS (14 years ago)

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(#M40001697) TCS QUESTION puzzle Keep an EYE

Find the value of @@+25-++@16, where @ denotes square and + denotes square root and - has its usual meaning

Solution

@@5-++256
=@25-+16
=625-4
=621
This answer is given by SOMIL NAIN and is correct answer

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Asked In TCS (14 years ago)

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(#M40001689) TCS QUESTION puzzle 2010 Keep an EYE

Refer to the figure below. A ship started from P and moves at a speed of I miles per hour and another ship starts from L and moving with H miles per hour simultaneously .Where do the two ships meet?
||—g—||—h—||—i—||—j—||—k—||—l—||
PG H I J K L are the various stops in between denoted by || . The values g, h, i, j, k, l denote the distance between the ports.

Asked In TCS (14 years ago)

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(#M40001660) TCS QUESTION december 2010 question Keep an EYE

In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200 km/hr and the time of flight increased by 30 minutes. The duration of the flight is:
(a) 1 hour (b) 2 hours (c) 3 hours (d) 4 hours

Solution

suppose avg speed of aircraft is v km/hr,and it takes t hr to trip 600 km.
then t=600/v.......(1)
now avg speed slowed down by 200 km/hr and it takes 30 more minutes that means now it takes t+30/60=t+1/2 hr and speed is v-200
now time=distance/speed=>t+1/2=600/(v-200)
2t+1=1200/(v-200)
(2t+1)(v-200)=1200
(2t+1)((600/t)-200))=1200 from (1)
on solving it t= -3/2 or 1
time cant be -ve,hence answer is 1 hr.
This answer is given by MOHD ANAS and is correct answer

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Asked In TCS (14 years ago)

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(#M40001656) TCS QUESTION 2010 question Keep an EYE

. In how many different ways can the letters of the word 'LEADING' be arranged in such a way that the vowels always come together?
(a) 360 (b) 480 (c) 720 (d) 5040

Asked In TCS (14 years ago)

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(#M40001653) TCS QUESTION latest 2010 question Keep an EYE

Two trains move in the same direction at speeds 50 kmph and 32 kmph respectively. A man in the slower train observes that 15 seconds elapse before the faster train completely passes by him. What is the length of faster train?
(a) 100m (b) 75m (c) 120m (d) 50m

Asked In TCS (14 years ago)

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(#M40001651) TCS QUESTION puzzle 2010 Keep an EYE

. 2 oranges, 3 bananas and 4 apples cost Rs.15. 3 oranges, 2 bananas, and 1 apple costs Rs 10. What is the cost of 3 oranges, 3 bananas and 3 apples?
(a) Rs10 (b) Rs15 (c) Rs20 (d) Rs25

Asked In TCS (14 years ago)

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(#M40001650) TCS QUESTION puzzle 2010 Keep an EYE

A bus started from bus stand at 8.00a m and after 30 min staying at destination, it returned back to the bus stand. The destination is 27 miles from the bus stand. The speed of the bus 50 percent fast speed. At what time it returns to the bus stand.
(a) 11a.m (b) 12a.m (c) 10a.m (d) 10.30p.m

Solution

The question is not complete, it should also be given in the question that average speed of the bus is equal to the starting speed of the bus
if we make this correction then answer by RAJAT SHARMA given below is correct

the answer is 11 a.m. ..........
let the initial speed of bus is V.....so it takes time in going T1 = 27/V and speed increases 50 %, while returning so time taken T2 = 27/(1.5V) = 18/V and it stops for 30 mins i.e., (.5 hr),
therefore total time taken T =(27/V)+(18/V)+(.5).
then average speed, V = total dist. traveled / total time
i.e.,V=2*27/T on solving we get V = 18 mph
hence finally time taken while going = 1.5hr + staying time (.5hr.) + time in returning with increased speed of 27 mph (1hr.)
hence total time taken=3 hrs. hence 11a.m.

but if we use the initial speed (18 mph) as a given term, then answer given below by YADEESHKUMAR is correct
ans is a)11am
bus covers 27 miles with 18mph in= 27/18 = 1 hr. 30 min.
it waits at stand = 30min.
after this, speed of return increases by 50 % so 50 % of 18 mph = 9 mph
total speed of returning = 18+9 = 27 mph
then in return it takes 27/27 = 1hr.
thus total time in journey = 1+1.30+0.30 = 3hr
so it will come at 8+3hr=11am.


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Asked In TCS (14 years ago)

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(#M40001647) TCS QUESTION puzzle 2010 Keep an EYE

A pizza shop, there were 2 kinds of pizzas available. But now they have introduces 8 new types, a person buy two different type pizzas of new type in how many ways he can select?
(a) 24 (b) 43 (c) 56 (d) 58

Asked In TCS (14 years ago)

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(#M40001646) TCS QUESTION question 2010 Keep an EYE

A man jogs at 6 mph over a certain journey and walks over the same route at 4 mph. What is his average speed for the journey?
(a) 2.4 mph (b) 4 mph (c) 4.8 mph (d) 5 mph

Solution

Let the length of the journey = x
so time taken = x/6 for first and x/4 for second journey
so avg. velocity = (x+x)/[(x/6)+(x/4)] = 4.8

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Asked In TCS (14 years ago)

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(#M40001643) TCS QUESTION puzzle 2010 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?
(a) 2 (b) 3 (c) 48 (d) 25

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