Aptitude Test :- 80 minutes 35 question
all Quantitative
question from demo test on openseesame.tcs.com
i got questions
1. (1/2) of a number is 3 more than the (1/6) of the same number?
a) 6 b)7 c)8 d)9

2. There are two water tanks A and B, A is much smaller than B. While water fills at the rate of 1 liter every hour in A, it gets filled up like, 10, 20, 40,80, 160…..in tank B. (At the end of first hour, B has 10 liters, second hour it has 20 liters and so on). If tank B is 1/32 filled of the 21 hours, what is total duration of hours required to fill it completely?
a) 26 B)25 c)5 d)27
solution: 2^5=32 so total hr = 21+5=26
3.. 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?
a) 2000 b) 5000 c) 3000 d) 7000
solution for hollow cubes required is ((l*b*h)-(l-2)*(b-2)*(h-2))/size of smaller cubes
4.A girl has to make pizza with different toppings. There are 8 different toppings. In how many ways can she make pizzas with 2 different toppings?
a)16 b)56 c)112 d)28
solution:for 1st choice she has 8 topings and for second she has 7 choices as both should be different hence 8*7=56
5.. A triangle is made from a rope. The sides of the triangle are 25 cm, 11 cm and 31 cm. What will be the area of the square made from the same rope?
a)280.5625 b)240.5625 c)280.125 d)240
use perimeter and area formula
6. A lady has fine gloves and hats in her closet- 18 blue, 32 red, and 25 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove. How many gloves must she take out to make sure she has a pair of each color?

solution :highest+middle +2 =32+25+2
6.Middle- earth is a fictional land inhabited by hobbits, elves, dwarves and men. The hobbits and elves are peaceful creatures that prefer slow, silent lives and appreciate nature and art. The dwarves and the men engage in physical games. The game is as follows. A tournament is one where out of the two teams that play a match, the one that loses get eliminated. The matches are played in different rounds, where in every round; half of the teams get eliminated from the tournament. If there are 8 rounds played in knock out tournament, how many matches were played?
a)257 b)256 c)72 d)255
solution: 1+2+3+...write upto 8 terms
7.. There is 7 friends (A1, A2, A3....A7).If A1 have to have shake with all without repeat. How many handshakes possible?
a)6 b)21 c)28 d)7
8.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

9.In T.Nagar the building were numbered from 1 to 100.Then how many 0’s will be present in the numbers?
a)18 b)19 c)20 d)11
answer is 11
10.) A number when divided by D leaves a remainder of 8 and when divided by 3D leaves a remainder of 21. What is the remainder left, when twice the number is divided by 3D?
answer is 3
as let no be n then
n/D=p1+8/D...........1
n/3D=p2+21/D.........2
subtract 2 from 1 it will be
2n/3D=p1-p2+3/3D so rem is 3
11.Ferrari S.P.A is an Italian sports car manufacturer based in Maranello, Italy. Founded by Enzo Ferrari in 1928 as Scuderia Ferrari, the company sponsored drivers and manufactured race cars before moving into production of street-legal vehicles in 1947 as Ferrari S.P.A. Throughout its history, the company has been noted for its continued participation in racing, especially in Formula One where it has employed great success .Rohit once bought a Ferrari. It could go 4 times as fast as Mohan's old Mercedes. If the speed of Mohan's Mercedes is 35 km/hr and the distance traveled by the Ferrari is 490 km, find the total time taken for Rohit to drive that distance.
20.72 b) 5.18 c) 238.25 d) 6.18
12.A sheet of paper has statements numbered from 1 to 70. For all values of n from 1 to 70. Statement n says ' At least n of the statements on this sheet are false. ‘Which statements are true and which are false?
a) The even numbered statements are true and the odd numbered are false.
b) The odd numbered statements are true and the even numbered are false.
c) The first 35 statements are true and the last 35 are false.
d) The first 35 statements are false and the last 35 are false.
solution: for these type question....
atleast means- 1st half true last half false that is complement 1st part from statement
exactly means -second last stat true
atmost means-all r true...........

remember in answer all statement is complemented taht is for true we use false and vice vesa
13. 12 programmers take 12 min to write 12 lines of code how many program will write 72 line in 72 min

solutions: for these type of questions
programmera*time/no of lines=programmera*time/no of lines
the value which is not given put x and find like
12*12/12=x*72/72 here
13.anoop manages to draw 7 circles of equal radii with there centres on diagonal of square such that two extremes touches two sides of squares and middle circle touches two circles on each sides..find ratio of circle to side of squares
solution:let radius r side is a then diagonal of square =2^(1/2)*a

and diagonal =12r+2*2^(1/2)*r
14. they will aske u question on time and clock
like on another planet there is day of 36 hr instead of 24 and 1 hr=90 min....and clock make two round in a day means 18 hr day and 18 hr night..so difference in hr hand and min hand ....
solution:
convet time like 12:40 to hr completely as 12+40/90

and proceed as hr hand makes 360 degree in 18 hr then in 12+40/90 how many degrees

also in 90 min minutes hand makes 360 degrees so in 40 min how many degrees ....
now subtarct both degrees found smallewer one from bigger that is answer......

they repaet question also......

15. if point set type question i.e set of points separated from a line then answer would be always no of points as we acn plot infinite points on circle each having its distinct tangent...seaparating it from other points

Hello sir my name is Sudheer Agrawal ,i m from cs department from itm goi gwalior ,i want to touch or contact with u for updating me . my email id is
cssudhirmmpp@gmail.com
at last not least i want to u plz u supports me for my carrier as a mysenior,my bigbrother,myfriend koi bhi
Thanking u sir

fr me its wasn't much technical
he asked about myself and why i want to join tcs...
tech quest like
1> how to fetch register value using c program
2>swap two no without using two variable
3>difference between c,c++,java,.NET
but from my other frnds they asked
how to print semicolon,normal forms with example,basic question from os like difference between thread and process,tcp and udp difference.............

just prep quant from there demo test...on openseasemtcs......
in technical not to worry too much but have ur fundamentals clear... on cn,os,dbms,c
in hr confidence and way of communication
matters
all d best
for any further queries u can contact me on on faiyazul1cr07is012@gmail.com
or leave comment .....with mail id

No. of Candidate applied And Points that Worked in Favour

330 applied 130 got selected and i was one

TzwSVsOw Haii faiyazul...thanks for sharing this.do u knw when they ll start offcampus drive for 2011 batch?????is der any change in pattern for offcampus????