TCS Aptitude Questions with solutions

Tcs aptitude questions with answers:

1 . A box of 150 packets consists of 1kg packets and 2kg packets. Total weight of box is 264kg. How many 2kg packets are there ?

Sol) x= 2 kg Packs
y= 1 kg packs
x + y = 150     ………. Eqn 1
2x + y = 264   ………. Eqn 2
Solve the Simultaneous equation; x = 114
so, y = 36
ANS :  Number of 2 kg Packs = 114.

2 . My flight takes of at 2am from a place at 18N 10E and landed 10 Hrs later at a place with coordinates 36N70W. What is the local time when my plane landed?
a)6:00 am b) 6:40am c) 7:40 d) 7:00 e) 8:00

Sol) The destination place is 80 degree west to the starting place. Hence the time difference between these two places is 5 hour 20 min. (=24hr*80/360).
When the flight landed, the time at the starting place is 12 noon (2 AM + 10 hours).
Hence, the time at the destination place is 12 noon – 5:20 hours = 6: 40 AM

3 . The size of the bucket is N kb. The bucket fills at the rate of 0.1 kb per millisecond. A programmer sends a program to receiver. There it waits for 10 milliseconds. And response will be back to programmer in 20 milliseconds. How much time the program takes to get a response back to the programmer, after it is sent?

Sol) see it doesn’t matter that wat the time is being taken to fill the bucket.after reaching program it waits there for 10ms and back to the programmer in 20 ms.then total time to get the response is 20ms +10 ms=30ms

4 . Y catches 5 times more fishes than X. If total number of fishes caught by X and Y is 42, then number of fishes caught by X?

Sol) Let no. of fish x catches=p
no. caught by y =r
then p=7,r=35

5 . Three companies are working independently and receiving the savings 20%, 30%, 40%. If the companies work combinely, what will be their net savings?
suppose total income is 100
so amount x is getting is 80
y is 70
z =60

but total money is 300
so they are getting 90 rs less
90 is 30% of 300 so they r getting 30% discount

6 . The ratio of incomes of C and D is 3:4.the ratio of their expenditures is 4:5. Find the ratio of their savings if the savings of C is one fourths of his income?
Sol) incomes:3:4

7 . If G(0) = -1 G(1)= 1 and G(N)=G(N-1) – G(N-2) then what is the value of G(6)?
ans: -1
bcoz g(2)=g(1)-g(0)=1+1=2

8 . what’s the answer for that :
A, B and C are 8 bit no’s. They are as follows:
A -> 1 1 0 0 0 1 0 1
B -> 0 0 1 1 0 0 1 1
C -> 0 0 1 1 1 0 1 0 ( – =minus, u=union)
Find ((A – C) u B) =?

sol ) To find A-C, We will find 2’s compliment of C and them add it with A,
That will give us (A-C)
2’s compliment of C=1’s compliment of C+1
Now (A-C) U B is .OR. logic operation on (A-C) and B
10001001 .OR . 00110011
The answer is = 10111011,
Whose decimal equivalent is 187.

9 . One circular array is given(means memory allocation tales place in circular fashion) dimension(9X7) and starting add. is 3000, What is the address of (2,3)……..
Sol) it’s a 9×7 int array so it reqiure a 126 bytes for storing.b’ze integer value need 2 byes of memory allocation. and starting add is 3000
so starting add of 2×3 will be 3012.

10 . A bus started from bustand at 8.00am at the speed of 18mph and after 30 min staying at destination, it returned back to the bustand. the destination is 27 miles from the bustand. the speed of the bus 50 percent fast IN SPEED. SO AT what time it returns to the bustand?

sol) a bus cover 27 mile with 18 mph in =27/18= 1 hour 30 min. and it wait at stand =30 min.
after this speed of return increase by 50% so 50%of 18 mph=9mph
Total speed of returnig=18+9=27
Then in return it take 27/27=1 hour
then total time in joureny=1+1:30+00:30 =3 hour
so it will  come at 8+3 hour=11 a.m.
So Ans==11 a.m

I'm a always needed to know whats happening in technology world. I believe that "Technology" is the only word which can able to change the world and which should be more used by normal people to do their things easier.

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  • deborah
    June 29, 2011 at 3:31 PM

    nice 6face….. can u explain 9th and 10th que….and one more thing…plz avoid spelling mistakes as in 9thquestion…..i like it….as u said….keep moving forward

    • Sixface
      June 30, 2011 at 6:11 PM

      And in 9 th question its important that we have to see two things one is Starting address that is 3000 second one is what we need to find it is (2,3)
      First we need to multiply it to get how many locations we need 2 * 3 = 6
      And integer needs 2 bytes for each value for that 6 * 2 = 12 memory location so 3000 + 12 = 3012 ans

      For 10 th question there is a value missing and it is bus speed is 18 MPH. i hope now you can understand that problem.

      this two answers are brought you by Kirthika,

      Thank you for your valuable comment deborah it makes us to work more to get new good articles. I will take extra care to avoid spelling mistakes.
      And Keep looking yours comments. Keep moving Forward.

      • Amrut Chavan
        September 19, 2011 at 5:42 AM

        what is the address of (3,2);(6,1);(1,6) in question 9??

      • farook
        September 30, 2011 at 1:52 PM

        now get started ya……….

  • deborah
    July 7, 2011 at 2:36 PM

    thanks kirthi and 6face….for the explanation….and thanks for considering my comments

  • pramod
    August 17, 2011 at 11:58 AM

    can u plzzz send more TCS aptitude questions on my email id…

  • pranjali balasaheb patil
    August 23, 2011 at 4:18 PM

    plzz can u send me more TCS aptitude questions on my email id plzzz.

  • R.Nisha
    August 25, 2011 at 5:37 AM

    its full of intelligent question

  • R.Nisha
    August 25, 2011 at 5:40 AM

    plzzz send more questions on my mail id………… bcozz aftr 3years i want to become a gud job in tcs company……..

    • Sixface
      August 26, 2011 at 5:40 PM

      Thanks for comments……We will be posting about tcs interview questions part-2 in one week keep watching…….

  • Arvind Patel
    August 29, 2011 at 8:32 AM

    plzz send more question on my id

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    August 30, 2011 at 5:17 AM

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    August 30, 2011 at 3:13 PM

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    September 1, 2011 at 7:20 AM

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    September 4, 2011 at 12:04 PM

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  • sameena khan
    September 4, 2011 at 12:10 PM

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  • abhijeet
    September 9, 2011 at 6:28 AM

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    September 15, 2011 at 10:14 AM

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    September 16, 2011 at 10:45 AM

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    September 16, 2011 at 10:47 AM

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    September 16, 2011 at 10:50 AM

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  • nancy
    September 22, 2011 at 2:32 PM

    pls send some more questions…
    and help me how to solve it quickly…

  • Eswari
    September 23, 2011 at 4:22 PM

    i want more questions.plz say any website also.

  • shashank
    September 26, 2011 at 11:06 AM

    ans of the question does not seems to be right…..address of (2,3) cant be 3012 if you are considering array as 2 bytes….what i think is (2,3) means element number 18 in the array…how come it will have an address of 3012 in memory…

  • ekta
    September 28, 2011 at 12:04 PM

    thanks!!!!!!! I am from u.p board from MATHURA. I get confidence by sol your question.
    sir,,,i want to know how i can work in your company ??????plz must reply….
    i am B.TECH student

    • Sixface
      September 29, 2011 at 3:36 PM

      @ekta we appreciate your courtesy . Be strong in base langs. keep yourself updated with new technology. All the best for your future.

      Tech Twinklers Team.

    October 5, 2011 at 5:09 AM

    send tcs aptitude questions to my email

  • sanjay
    October 5, 2011 at 9:35 AM

    please send more question papers

  • karthik
    October 5, 2011 at 12:46 PM

    there is a mistake in Q no 8 .. but the final ans is correct

  • Yuvan
    December 4, 2011 at 10:57 AM


  • Madhavi Ponmani
    January 3, 2012 at 3:08 PM


  • Vaibhav Tiwari
    January 4, 2012 at 3:58 PM

    I m Sorry 2 say that ,I attended TCS campus placement few months ago.But none of the question was from given the question above.I have questions that were ask and I want 2 share them but dont know how???

    • Sixface
      January 18, 2012 at 7:18 PM

      Thanks for your feedback dude. this is model questions which were asked in one campus interview. Using this models we need to work out similar problems. we trying to publish all latest questions. If you like to share pls send your questions to us. we will share with your name.

    February 9, 2012 at 5:18 PM

    plz send me some more questions to my id ..plz

  • Yuvan
    February 16, 2012 at 3:54 PM

    Nice information thanks!!!

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    February 20, 2012 at 6:58 PM

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    February 21, 2012 at 3:51 PM

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    April 28, 2012 at 7:43 AM

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    June 4, 2012 at 3:14 PM

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    July 4, 2012 at 9:03 AM

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    July 8, 2012 at 5:43 PM

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    September 8, 2012 at 7:53 PM

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    September 16, 2012 at 4:54 PM

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    September 21, 2013 at 6:24 AM

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