Interested to Buy Any Domain ? << Click Here >> for more details...
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?
- 5 Answers
- 13619 Views
- Microsoft, Oracle, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / balbir singh
Firstly we take 6 balls, placing 3 on each pan of the
balance & check which pan goes up(1st weighing). If no
change it means the balls don't contain the defective
one,therefore the other two contain the defective
ball,which can be found out easily(2nd weighing).
Now if one of the pan goes up,it means it contains the
defective ball(out of 3 balls).We select these 3 & unload
the pans. Now we keep any of the 2 balls(from the selected
balls)on either side of the balance & weigh(2nd weighing).
One of these two will be the defective one and if not the
3rd one leftover is.
| Is This Answer Correct ? | 67 Yes | 6 No |
Answer / savitha shreyas
Firstly we take 6 balls, placing 3 on each pan of the
balance & check which pan goes up(1st weighing). If no
change it means the balls don't contain the defective
one,therefore the other two contain the defective
ball,which can be found out easily(2nd weighing).
Now if one of the pan goes up,it means it contains the
defective ball(out of 3 balls).We select these 3 & unload
the pans. Now we keep any of the 2 balls(from the selected
balls)on either side of the balance & weigh(2nd weighing).
One of these two will be the defective one and if not the
3rd one leftover is.
| Is This Answer Correct ? | 20 Yes | 2 No |
Answer / abi
Firstly we take 6 balls, placing 3 on each pan of the
balance & check which pan goes up(1st weighing). If no
change it means the balls don't contain the defective
one,therefore the other two contain the defective
ball,which can be found out easily(2nd weighing).
Now if one of the pan goes up,it means it contains the
defective ball(out of 3 balls).We select these 3 & unload
the pans. Now we keep any of the 2 balls(from the selected
balls)on either side of the balance & weigh(2nd weighing).
One of these two will be the defective one and if not the
3rd one leftover is.
| Is This Answer Correct ? | 8 Yes | 1 No |
Answer / aby
Firstly we take 4 balls, placing 2 on each pan of the
balance & check which pan goes up(1st weighing). If no
change it means the balls don't contain the defective
one,therefore the other Group of 4 balls contain the
defective
ball,Now if one of the pan goes up,it means it contains the
defective ball(out of 2 balls).We select these 2 & unload
the pans. Now we keep 1 ball(from the selected
balls)on either side of the balance & weigh(2nd weighing).
One of these two will be the defective one otherwise it
must b in the second group of balls.
| Is This Answer Correct ? | 3 Yes | 11 No |
Answer / rajeev kumar
Solution:
a. first take 4-4 group of balls and weight this. Then one
of group will be less.
b. next we take less weight group and take 2-2 group and
weight this and choose less weight group.
c. next take 1-1 group and weight choose less weight group.
and there is one ball.
So this ball is defective ball.
| Is This Answer Correct ? | 6 Yes | 25 No |
1 chocolate cost is Rs.1 & if we return 3 wrapers(covers) of chocolate we get 1 more chocolate. If u have Rs.15 how many chocolates do u get...?
54 Answers Accenture, Broadridge, DaVita, HP, Infosys, iNovate, Mphasis, TCS, Tesco, TFD, Zoho,
please let me know the minimum qualifying marks in screening test of group1 2010 to be eligible for group1 main exam.
x + 4 y relation between x and y is x/2y = 3/2 ie x = 3y find the x -2y ratio
Questions generally asked for cabin crew interviews
two trees are there. one grows at 3/5 of the other. in 4 years, total growth of trees is 8 ft. what growth will smaller tree will have in 2 years.
The speed ratio of two trains is 5:7,first train is travelling at a speed of 350 km/hr, what is the speed of the second train?
There is a room with 6' x 8'. A 1' tile is fixed along the 4 walls in one row. How many 1" tiles require to finish the work.
what is the formula to find resistance if the terms density,reluctance,sensitivity,voltage,current are given
3 Answers Cognizant, CTS, Solartis, TCS,
Two sides of triangle are 14 and 16.hat could be the third side?
diseribe yourslef as a person. what are your strangths and weaknesses?
Plz send me SBI PB and clerical Questions Papers
0 Answers State Bank Of India SBI,
A ship started from port and moving with 'I' miles/hour and other ship started From L and moving with 'H' miles/hour . At the place where these two ships will meet?
English 
