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4) 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? a) 13 b) cannot be determined c) 3 d) 42
TCS,
7 3794716) There are two water tanks A and B, A is much smaller than B. While water fills at the rate of one litre 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 litres , second hour it has 20, and so on). If tank B is 1/32 filled after 21 hours, what is the total duration required to fill it completely? a) 26 hrs b) 25 hrs c) 5 hrs d) 27 hrs
6 44018How many four digit numbers can be formed using the digits 1, 2, 3, 4, 5 (but with repetition) that are divisible by 4? Can you help Alok find the answer? a) 100 b) 125 c) 75 d) 85
TCS,
3 3161210) 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) 12.06 Ans: b
1 15138Alice and Bob play the following coins-on-a-stack game. 20 coins are stacked one above the other. One of them is a special (gold) coin and the rest are ordinary coins. The goal is to bring the gold coin to the top by repeatedly moving the topmost coin to another position in the stack. Alice starts and the players take turns. A turn consists of moving the coin on the top to a position i below the top coin (0 = i = 20). We will call this an i-move (thus a 0- move implies doing nothing). The proviso is that an i-move cannot be repeated; for example once a player makes a 2- move, on subsequent turns neither player can make a 2-move. If the gold coin happens to be on top when it's a player's turn then the player wins the game. Initially, the gold coinis the third coin from the top
TCS,
7 2552936 people {a1, a2, ..., a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, ..., {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the rest have shaken hands with at least one person in the set is a)12 b)11 c)13 d)18
TCS,
5 24457A hollow cube of size 5 cm is taken, with a thickness of 1 cm. It is made of smaller cubes of size 1 cm. If 4 faces of the outer surface of the cube are painted, totally how many faces of the smaller cubes remain unpainted?
4 11891Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P). The MINIMUM value of n1(P) over all configurations P of 5 points in the plane in general position (.i.e no three points in P lie on a line) is a) 3 b)5 c)2 d)8
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3 12111Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line; i.e. the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P). The maximum value of n1(P) over all configurations P of 19 points in the plane is 18 9 3
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2152.A clock gives 4 ticks consequetively. After days it has become defective & gives only 2 ticks. What is the probability that clock produces 3 ticks consequetively. 1 out of ?
2 6885Hi Guys. I am an Instrumentation and Control Engineer(ICE) and have filled various PSU entrance exam forms. I wanted to know if anyone of you out there had any material for the preparation of the same. Any sort of material will be greatly appreciated. Be it previous year questions (Aptitude, GK or Technical) , study material or links to websites which do have this material. PSUs that I am going to appear in are HPCL, SAIL, ECIL and finally Gate. Any suggestions and advice is greatly welcomed. My E-Mail ID is kris_sreekanth86@yahoo.co.in
Sail,
21931. 2 containers labeled A and B are filled with red and blue marbles in given quantities: - Container RED BLUE A 6 4 B 60 40 Each container is shaken vigorously. After choosing 1 of the container, without looking, draw out a marble. From which container you have the max probability of choosing a blue marble?
2 5025Post New General Aptitude Questions
How many 1's are there in the binary form of 8*1024 + 3*64 + 3
A person starts walking at a speed of 5km/hr through half the distance, rest of the distance he covers with a speed 4km/hr. Total time of travel is 9 hours. What is the maximum distance he can cover?
If A, B and C are the mechanisms used separately to reduce the wastage of fuel by 30%, 20% and 10%. What will be the fuel economy if they were used combined.
The average of 4 consecutive even numbers is 27. What is the largest number?
Work can be done by 8 men and 10 women in 25 days, the same work can be done by 10 children and 5 women . in how many days 2 children and 3 men can do the work?
ram singh goes to his office in the city, every day from his suburbun house. his driver mangaram drops him at the railway station in the morning and picks him up in the evening. Every evening ram singh reaches the station at 5 o'clock. mangaram also reaches at the same time. one day ramsingh started early from his office and came to the station at 4 o'clock. not wanting to wait for the car he starts walking home. Mangaram starts at normal time, picks him up on the way and takes him back house, half an hour early. how much time did ram singh walk.
Find the value of (1.99)2
5) Failure to use null indicator variable when referencing a nullable column will give the following SQLCODE a) +150 b) –001 c) +276 d) +305
In 3.5 Kg rod , there is 74% silver. If it is alloyed with a 0.5 Kg rod, the % of silver goes up to 84%. The percent of silver in 0.5 Kg rod?
In school there are some bicycles and 4 wheeler wagons. One tuesday there are 190 wheels in the campus. How many bicycles are there?
in a mixture, R is 2 parts, S is 1 part. in order to make S to 25% of the mixture, howmuch R is to be added
X2 – (A-3)X +(A+3) = 0 for what value of A the sum of square of roots will be least ?
A man drives at a speed of 40 miles/hr while his friend drives at a speed of 50 miles/hr. If the friend leaves 30 minutes after the man, when are they going to meet?
What number comes next 10, 9, 60, 90, 70 and 66?
A Farmer owns a square land of 15 m each side with a pole in one of the corners to which he tied his cow with a rope whose length is about 10 m. What is the area available for the cow to graze. (Assume pi = 3)
