TCS Interview Questions Paper

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57. 3, 22 , 7, 45, 15, ? , 31

Solution: Here it appear simple, because it arranged in arranged in sequence manner, but
the actual question was some what twist mentioning fibonacci series and more over
question was in statements (no numbers).. hence first try to understand the question well.

here let group alternate terms 3,7,15,31 (3+4 =7, 7+8 =15, 15+16=31)

Similarly for second group (22,45,? (22+23 = 45, 45+46 = 91) hence ans is 91.


58. In Tnagar many buildings were under residential category.for buildings they number as
1 to 100. For shops, corporation numbered between 150 and 200 only prime numbers. how
many time 6 will appear in building numbering?

Ans:

this type of question if it is asked how many 2,3,4,5,6,7,8,9 then you bindly write the
answer as 20.but for 1 answer wiil be 21 as 100 is included

59. ((4x+3y)+(5x+9y))/(5x+5y) = ? as (x/2y) = 2

Ans: as x=2y put the value and get the answer.


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

Ans: 12 (we can easily predict from options, as we take y as 6)



61. I dont remember exactly the question, one logical problem stating the colour of beer?
Ans: white.what ever the question about the color of beer means you wrote the answer as
white because polar beer.this question is very lengthy don’t burther about that.



62. Jumbled letters, parakeet(answer)
Ans: bird(category)



63. Im only son for my parents. (some irrelevant statements in the middle to distract
u).The man in picture is my father's son.(some irrelevant statements).who is he?
64.A toy train can make 10 sounds sound changes aftr every 4
min.................
.....................................
..........................................
now train is defective and can make only 2 sounds................. .................................................................................
find probability that same sound is repeated 3 times consecutively(1 OUT OF
__)?
1.16
2.8
3.12
4.4
ANS:
(1/2)*(1/2)*(1/2)=(1/8)
thus 1 out of 8
 
65.
................................................
......................................................
................................................................................
..................................................................................
resistance is X ohm voltage Y then wat is current
1.
2.
3.
4.
ans:V=IR
66. I have 3 grandsons...........................................
 age  diff btw 2 of grandsons X yrs
1st grandson is twice elder than younger one
adiition off ages of all the three is y
thn what is age of eldest grandson??(there is some value in X and Y)

67. Ferrari is leading car manufacturer.*Ferrari S.p.A.* is an Italian sports
car ........................................
It has enjoyed great success.
If Mohan's Ferrari is 3 times faster than his old MERCEDES wich gave him 35
kmph
if Mohan travelled 490 km in his ferrari
the hw much time(hours) he took??
1.8
2.4
3.7
4.7.33
(options may be different)
68.lion rat stayin in jungle happily...........................................
....................................................................................
Lion lies on : MON TUE WED
RAT lies on :WED THURS SAT
if lion says : I didnt lie yesterday
RAT says : e1 i didnt lie yesterday
so what day is today??
 69. The ratio of current age of X and Y is 5:7,after hw many years der age ratio will b 7:9? 70. Inspired by fibonacci series sanket decided to create is own series which is
1,2,3,7,7,22,15,67,....
lik dis,then what no come immediately before 63?
ans= 202
xpalnaton ;check altenate no.1,3,7,15=====>n*2+1
           similarly 2,7,22,67=======>n*3+1
so series is 1,2,3,7,7,22,15,67,31,202,63........
71. By using 1,2,3,4,5,how many 5 digit no. can be formed which is divisible by
4,repetation of no. is allowed??
Ans-last 2 place should be divisible by 4
So possible values at last place are 12,24,32,44,52 this can be arranged in 5 ways
The rest 3 places can be filled in 5*5*5 way so total is 5^4
 
72. The cost 1 plum is 1 cent ,2 apples is 1 cent,3 banana is 1 cent........
if rahul buys same amount of fruits for his 3 sons spending 7 cent den what amount of fruit each
child will get??
ans: 1 plum ,2 apple,1 banana
xplanation:7/3=2.333 cents for each child
according to ans given for d sum each child will get 1 plum ,2 apple,1 banana
 
73. 2880 is divided by which smallest no. so we get no. which is perfect
square???
ans= 5
xplanation 2880/5=576 sure sort question.
 
74. There are to prime no........(with some nonsence stuff)..............
 den addition of two prime no is 13,n multiplication is 21,den wat r some of
der squares?
Explanation : XY=21 and X+Y=13...solve using calci..ans of X & Y will b in
points..den x2+y2=??
 
75. Smita was makin 1 design .....(again some nonsence)....size of larger cube to be made
is 5*5*5........
using smaller cubes of 1*1*1....she created solid larger cube ..den she decided to make
hollow cube...
den hw many 1*1*1 cubes rqd to make hollow larger cube
Ans= 104 Explanation (25+25)+(15+15)+(12+12)=104

76. 2X/5Y=5X/3Y...den wat is x/y
 
77. A pizza parlor provides pizzas...there wer 2 toppings available initially
peperoni and salami.
but now they,ve introduces 8 new toppings (some names) to select from......
a person wishes to buy two DIFFERENT pizzas of NEW topping....in how many ways he can
do that??
ans : 8 X 7=56

78. Person travels to....(some nonsence stuff).....if he goes from A to B with speed of
4kmph and
returns back to B with speed of 5 kmph....what is his avg. speed of journey??(values may b
different)
Ans: 4.44(its NOT 4.5)
Explaination : 2PQ/(P+Q)===2*4*5/(4+5)=4.44kmph

79. There is a dice having value frm 1 ..6 on each face......and a pack of cards having face
card aces .....
(hugh chunk of nonsense)......when 2 dies are thrown and their scores are added then
which sum will come max number of times??
1.8
2.9
3.10
4.11
Ans: 8
Explanation : 8----2,6  3,5  4,4
       9----4,5  3,6
       10----5,5  4,6
       11---- 5,6
   thus 8's probability is more

80. ''susha brought terilon cloth and rope to (some nonsence nw jst go to last 2
lines)....''....
if rope is 153 mtr long and it is to be cut into pieces of 1 mtr long then how many times will
she have to cut it??
Ans : 152 times
81. There are some 2 wheelers and 4 wheelers parked ........(some nonsense)...........total
number of wheels present is 240
then how many 4 wheelers wer there
Ans-
This can be done by looking at the option first check the no of bicycles and then multiply it
by 2. And then substract the multiplication value from 240 if the value is divided by 4 then that is
the answer
82. 1/3 of a number is 6 more than 1/6 of that number then what is the number
Ans=x/3=x/6+6=36

83. The cost of making a robot consists of material cost,repairing cost,coloring cost and is
in the ratio 3:4:5.if the material cost is 1200 then find out the cost of the robot.
Ans- simple 3 part is 1200 so 3+4+5=12 part=?
84. There are pepsi 1 litre & oil 1 litre .it is given as 1 spoon of pepsi is aken and is mixed
with Oil. Then 1 spoon oil&pepsi is taken and is mixed with pepsi then which of the
condition holds true.
Ans-the amount of pepsi in oil is mre than amount of oil in pepsi.
85. An tank is filled with water .in first hour 10 lit ,in second hour 20 lit and in 3 rd hour
time 40 lit.if time taken to fill ¼  of the tank is 5 hr.what is the time required to fill up the
tank.
Ans-as the water is filled as twice speed.and in 5 the hour ¼.so in 6 hour ½.so
answer 7 th hour.

86. Which is the smallest no divides 2880 and gives a perfect square?
 a.1    b.2   c.5   d.6        Ans: c
 
87. Two bowls are taken, one contains water and another contains tea.one spoon of water is
added to second bowl and mixed well, and a spoon of mixture is taken from second bowl and
added to the second bowl. Which statement will hold good for the above?  
 
(Ans: second liquid in first bowl is smaller than the first mixture in second bowl)
 
88. Form 8 digit numbers from by using 1, 2,3,4,5 with repetition is allowed and must be
divisible by4?
a.31250    b.97656   c.78125   d.97657  
Ans: c
 
89. Rearrange and categorize the word ‘RAPETEKA’?
 
Ans: bird
 
  87. In school there are some bicycles and 4wheeler wagons.one Tuesday there are 190 wheels in
the campus. How many bicycles are there?
 
Ans: 15
 
88. Key words in question (Fibonacci series, infinite series, in the middle of the question one
number series is there….I got the series 3 12 7 26 15  ?  
 
Ans:54
(Logic: 3*2+1=7                         12*2+2=26                            
           7*2+1=15        26*2+2=54)
89. A lies on mon, tues, wed and speak truths on other days, B lies on thur, fri, sat and speaks
truths on other days …one day a said I lied today and B said I too lied today. What is the day?
 
90. Man, Bear, North, South, walks.
 
Ans: White
 
91. A father has 7 penny’s with him and 1 water melon is for 1p, 2chickoos for 1p, 3 grapes foe
1p.he has three sons. How can he share the fruits equally?
 
Ans: 1 watermelon,2chickoos,1grape
 
92. (1/2) of a number is 3 times more than the (1/6) of the same number?  
 
Ans: 9
 
93.  There are two pipes A and B. If A filled 10 liters in hour B can fills 20 liters in same time.
Likewise B can fill 10, 20, 40, 80,160….if B filled in (1/16) th of a tank in 3 hours, how much
time will it take to fill completely?
 
Ans:7 hours
 
94.  KEYWORDS:T.Nagar,Chennai,1-100,prime numbers b/n 140-180,How many 2’s are there?
 
Ans: 20   (Not only 2’s ,1’s,3’s,4’s,5’s,6’s,7’s,8’s,9’s,0’s also 20)
 
95.  A man is standing before a painting of a man and he says I have no bro and sis and his father
is my father’s son?
 
Ans: he himself
      96. One question has last part like difference between two terms is 9 and product of two numbers
is 14, what is the squares of sum of numbers?
Ans:109
     97. What is the value of [(3x+8Y)/(x-2Y)]; if x/2y=2?  Ans:10 {the numerical may change)
    98.   A pizza shop made pizzas with to flavours.in home there are ‘N’ different flavors, in that
‘M’ flavors are taken to made pizza.in how many ways they can arrange?
(Logic:
NcM )
    99.   One grandfather has three grandchildren, two of their age difference is 3, eldest child age is 3
times youngest child’s age and eldest child’s age is two times of sum of other two children. What
is the age of eldest child?
 Ans:15
      100.   KEYWORDS: one organization ,material labor and maintenance are in the ratio of
4:6:7,the material cost is:100,what is the total cost?
Ans: 425

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