Latest TCS Aptitude Question SOLUTION: today I had my written test and the questions are: 1. 1-2+3-4...-98+99 my ans is 50 2.some credit card question sum of 3 consecutive odd digits is given a value and the answer i

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today I had my written test and the questions are:
1. 1-2+3-4...-98+99
my ans is 50
2.some credit card question sum of 3 consecutive odd digits is given a value and the answer is 3
3. probability of getting sum as 5 before 7 when 3 dice are thrown.
4. jack and paul question which is repeatedly posted in m4maths ans is 4km/hr.
5.some data interpretation question ans is eesha who has the largest number.
5. 5 sharp angles of a star and some figure was given ans is 36*5=180
6.In the equation A + B + C + D + E = FG where FG is the two digit number whose value is 10F + G and letters A, B , C , D , E, F and G each represent different digits. If FG is as large as possible. What is the value of G? but 2 was not given in the option so it is dummy.
7.In a office, at various times during the day the boss gives the secretary a letter to type, each time putting the letter on the top of the pile in the secretary’s inbox. When there is time, the secretary takes the top letter off the pile and type’s it. If there are five letter in all , and the boss delivers in the order of 1 2 3 4 5, which of the following could NOT be the order in which secretary types them. (a) 2 4 3 5 1 (b) 4 5 2 3 1 (c) 3 2 4 1 5 (d) 1 2 3 4 5
8.there are 87 match sticks how many triangles are formed?
these are the questions I could remember. I got 5 questions from this site.

Asked In TCS M.Abhi Varsha (10 years ago)

Unsolved Read Solution (10)

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Read Solution (10) :

Ashu Pal  (10 years ago)

Yup its 50.

Is this solution Helpfull? Yes (6) | No (1)  

Rahul Kumar Sinha  (10 years ago)

8. 43 triangles

Is this solution Helpfull? Yes (6) | No (1)  

mahak saha  (10 years ago)

the answer of question no.8 is 105995

Is this solution Helpfull? Yes (4) | No (6)  

PRATEEK JAIN  (10 years ago)

7. (b) is impossible

Is this solution Helpfull? Yes (2) | No (3)  

Dheeraz  (10 years ago)

7th option 2 follow stack

Is this solution Helpfull? Yes (2) | No   

Parul  (10 years ago)

the answer is 87C3

Is this solution Helpfull? Yes (1) | No (2)  

Adi  (10 years ago)

Ques 8: 1st take 3 match stick n make a triangle. 87-3=84 matchsticks remaining, 1 triangle.
After this add 2 matchsticks n repeat till all match sticks are used. Triangles formed=84/2=42. So total=43

Is this solution Helpfull? Yes (1) | No   

Ashu Pal  (10 years ago)

Q 1. Ans is -49.

Is this solution Helpfull? Yes | No (9)  

Maithreyi  (10 years ago)

can any one explain the solution for question no.8

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DIVYA KUKRETI  (10 years ago)

ans for 1: +50
1=1
1-2=-1 (2+1)/2=1.5.. take 1(whole no)
1-2+3=2 (3+1)/2=2
1-2+3-4=-2 (4+1)/2=2.5=2(whole no)
1-2....+5=3
.
.
.
1-2....+99=50 (99+1)/2=50
now we observe if the series is ending with -ve sign that is -2,-4... result hold negative sign else positive...

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