Search Interview Questions
Question: There are 12 balls looks identically equal. But one of them has weight different(more or less) from other. How to find that dissimilar ball with minimum balances?
Answer: Three Balances
Divide in 3 equal parts (4 balls). Weight two parts if both are equal then pick third part divide in 2 parts (2 balls). Pick the heavy side and weight.


Question: There are 12 balls looks identically equal. But one of them has weight different(more or less) from other. How to find that dissimilar ball with minimum balances?
Answer: Three Balances If you see the question.. "weight different(more or less)" Firstly divide the 12balls into three groups of 4balls numbered 1,2,3 Firstly divide the 12balls into three groups of 4balls numbered 1,2,3 Three Steps: Three Steps: take 3 sets of 4 balls each. 12 Three Balances Divide in to two 6 balls and 6 balls in your both hand DIVIDE IN TO FOUR GROUPS OF 3 BALLS EACH. Split the balls into 5,5,2 Only three trails. First i'll take a balance and i'll place 6 balls on each side.since 1 ball has different weight from others, its easy to recognize which side that ball is. In second step, i'll take those 6 balls and place them 3 in each side. Next i'll take 2 balls out of those 3 balls and i'll place them in the balance, if the balls show the same weight, then the third one is the actual ball with different weight. If the weight of the two balls is not same, then the actual ball is found in the balance. Source: CoolInterview.com Answered by: Joselyn  Date: 10/7/2008  Contact Joselyn3 Times Divide into a,b,c,d contains 3 each divide into 4groups with 3 on each. Only 3 balance is enough to identifying dissimilar one ,out of 12 balls Hi guys.... If you have the better answer, then send it to us. We will display your answer after the approval Rules to Post Answers in CoolInterview.com:

Related Questions  
At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock? 2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth. 3. Two trains starting at same time, one from Bangalore to Mysore and other in opposite direction arrive at their destination 1 hr and 4 hours respectively after passing each other. How much faster is one train from oter? A man collects cigarette stubs and makes one full cigarette with every 8 stubs.If he gets 64 stubs how many full cigarettes can he smoke? 5. There is one room with 3bulbs inside and corresponding switches are outside the room. You make any combination of three switches and enter room only once. How do you find out the respective switches for these three bulbs. 


There are 7 letters A,B,C,D,E,F,G All are assigned some numbers from 1,2 to 7. B is in the middle if arranged as per the numbers. A is greater than G same as F is less than C. G comes earlier than E. 1) Which is the fourth letter ? ( B / D / F/ E) 2) what is the difference between A and F? ( 3 /4/ 5/ 6) 3 Choose 4 consecutive letters? ( ABCD / BDFE / AEFB / NONE OF THESE ) 


Let D be the set of all points in the real plane such that x + y <= 1, where x (respectively y) denotes the absolute value of x (respectively y). Prove that amongst every 5 points in D, there exist two points whose distance from one another is at most 1. 


While traveling in a road, the road diverges left and right.One way goes to the heaven and other one goes to hell I want to go to heaven. In that village only two inhabitants are living one is knight and other one is knave.Knight will always speak truth and knave will always speak lie. In that road one inhabitant is standing but we don't know who is he.He might be an knight or knave i want to ask a question to that inhabitant to go to heaven. How can i identify that inhabitant is knight or knave? 


There are 4 cars . They all are coming from different directions. They have to cross through one square.They all arrive at the same time. Nobody stops . still there is no clash . note : They all are driving at a speed if 100 km/hr. options are: 1) all cars take left 2) all cars turn right 3) two cars turn left and two turn right. tell me the answer with reason. 


Some gatekeepers are warriors and some warriors are cowards therefore some gatekeepers must be cowards.What is correct answer? 


361 > 22 121 > 14 81 > 12 25 > X What is the value of X? 


These words follow a logical progression: CODIFY LAMINA STOVE RESET JOKUL QUIRES Which one of these comes next? REST, GRAIL, STOIC, ORDEAL 


A cube of side 4cm is painted with colors red,blue,green in such a way that opposite sides are painted in the same colour . this cube is now cut into 64 cubes of equal size .then 1) how many have atleast two sides painted in different colours. 2) how many cubes have only one side painted. 3) how many cubes have no side painted 4) how many have exactly one side not painted. 


If 12 distinct points are placed on the circumference of a circle and all the chords connecting these points are drawn. What is the largest number of points of intersection for these chords? 


Let D be the set of all points in the real plane such that x + y <= 1, where x (respectively y) denotes the absolute value of x (respectively y). Prove that amongst every 5 points in D, there exist two points whose distance from one another is at most 1. 


A bus run at 100 km/hr top speed. It can carry a maximum of 6 persons. If speed of bus decreases in fixed proportion with increase in number of person, find speed when three person are traveling in bus? 


There is a whole number n for which the following holds: if you put a 4 at the end of n, and multiply the number you get in that way by 4, the result is equal to the number you get if you put a 4 in front of n. In other words, we are looking for the number you can put on the dots in the following equation: 4... = 4 ?...4 Which number must be put on the dots to get a correct equation? 


The fraction EVE/DID = 0,TALKTALKTALKTALK... is a normal fraction that can also be written as a recurring decimal. Which fraction is this (equal letters are equal ciphers)? 


A cable, 16 meters in length, hangs between two pillars that are both 15 meters high. The ends of the cable are attached to the tops of the pillars. At its lowest point, the cable hangs 7 meters above the ground. How far are the two pillars apart? 


The legendary king Midas possessed a huge amount of gold. He hid this treasure carefully: in a building consisting of a number of rooms. In each room there were a number of boxes; this number was equal to the number of rooms in the building. Each box contained a number of golden coins that equaled the number of boxes per room. When the king died, one box was given to the royal barber. The remainder of the coins had to be divided fairly between his six sons. Is a fair division possible in all situations? 


This is a most unusual paragraph. How quickly can you find out what is so unusual about it? It looks so ordinary that you would think that nothing is wrong with it at all, and, in fact, nothing is. But it is unusual. Why? If you study it and think about it, you may find out, but I am not going to assist you in any way. You must do it without any hints or coaching. No doubt, if you work at it for a bit, it will dawn on you. Who knows? Go to work and try your skill. Good luck! What is unusual about the above paragraph? 


Here is a sequence of numbers: 1 11 21 1211 111221 It seems to be a strange sequence, but yet there is a system behind it... What is the next term in this sequence? 


Below are a number of statements: 1. Precisely one of these statements is untrue. 2. Precisely two of these statements are untrue. 3. Precisely three of these statements are untrue. 4. Precisely four of these statements are untrue. 5. Precisely five of these statements are untrue. 6. Precisely six of these statements are untrue. 7. Precisely seven of these statements are untrue. 8. Precisely eight of these statements are untrue. 9. Precisely nine of these statements are untrue. 10. Precisely ten of these statements are untrue. Which of these statements is true? 

Please Note: We keep on updating better answers to this site. In case you are looking for Jobs, Pls Click Here Vyoms.com  Best Freshers & Experienced Jobs Website.
View All Logical & Aptitude Interview Questions & Answers  Exam Mode / Learning Mode
India News Network 