You have 8 balls. One of them is defective and weighs less
than others. You have a balance to measure balls against
each other. In 2 weighings how do you find the defective
one?
- 6 Answers
- 33441 Views
- Geniteam, Microsoft, Wipro, I also Faced
- E-Mail Answers
Answer Posted / laxman
divide 8 balls into two halves 4 each
step1: take a set of 4 balls and divide into two sets of two
balls eeach and wight them,if theres diference in
weight defective ball is in this set of 4 ball..else
consider other set of 4 balls(extra step)
step2: consider the set of 2 balls having less weight and
weight them and pick the defective ball
best case 2 steps...worst case 3 steps
| Is This Answer Correct ? | 2 Yes | 9 No |
Post New Answer View All Answers
There are 9 balls of equal size and same weight (they look similar) except 1. How may weighs required to find the dissimilar ball using a weighing balance?
There are five thieves, each loot a bakery one after the other such that the first one takes 1/2 of the total no. of the breads plus 1/2 of a bread. Similarly 2nd, 3rd,4th and 5fth also did the same. After the fifth one no. of breads remained are 3. Initially how many breads were there?
Find the value of the 678 to the base 7.
Argentina had football team of 22 player of which captain is from Brazilian team and goalie from European team. For remaining player they have picked 6 from argentine and 14 from European. Now for a team of 11 they must have goalie and captain so out of 9 now they plan to select 3 from Argentinean and 6 from European. Find out no of methods available for it. (2 marks)
A lorry starts from Banglore to Mysore at 6.00 A.M,7.00am.8.00 am.....10 pm. Similarly one another starts from Mysore to Banglore at 6.00 am,7.00 am, 8.00 am.....10.00pm. A lorry takes 9 hours to travel from Banglore to Mysore and vice versa. A lorry which has started at 6.00 am will cross how many lorries.
Find the Series number: 2,5,9,19,37,..
When DB2 is run in IMS environment an application can access data in a) Only DB2 database b) Only IMS database c) Both DB2 & IMS databases d) None of the above
Complete the series:5,6,7,8,10,11,14,__.
what are the possible questions asked for bank po interviews?
Ajay can build a house in 16 days and Barry can do the same job in 12 days. With help of Chintu, they did the job in 4 days only. How many days Chintu can do the job?
Choose the odd man out from the below mentioned options?
A man how many bikes of Rs 14000 can buy by selling 2100 bikes of Rs500/- of each
A 16 stored building has 12000 sq.feet on each floor. Company A rents floors and company B rents 4 floors. What is the number of sq.feet of unrented floor space.
Please provide me rs aggarwal verbal reasoning book link pleeeeeeeez
A pipe can fill a tank in 30 min B can fill in 28 min then if 3/4 th of tank can be filled by B pipe and after wards bothare opened then how much time is required by both the pipes to fill the tank completely. note: the values of A and B may slitely vary be ware.
