Interested to Buy Any Domain ? << Click Here >> for more details...
There are 9 balls of equal size and same weight(they look
similar) except 1. How many weights required to find the
dissimilar ball using a weighing balance?
- 8 Answers
- 20575 Views
- ABC, CTS, IBM, I also Faced
- E-Mail Answers
Answer Posted / mopurizwarriors
anwer is zero!!
here is the explanation:
first divide the balls into almost two equal groups!
i.e.,5 and 5 balls in 2 groups.
then compare the weights of two groups:
again,divide the first and second groups into almost equal
groups!!(say them as 1,2,3,4 groups,where 1,2 are from first
group and 3,4 are from second group).
let group-1 contains 3 balls and group-2 contain 2 balls
find weights of group-1 and group-2.say x,y
so,average weight of balls in group-2 is x/3.
if 2*(x/3)=y,then that odd ball is not present in first
group(don't confuse group-1 with first group).
so,that odd ball may be present in either group-3 or group-4.
continue,the process until u get groups containing only one
ball.
IN THIS METHOD ,YOU HAVEN'T USED ANY WEIGHTS!!!
SO,THE ANSWER IS:zero
| Is This Answer Correct ? | 4 Yes | 17 No |
Post New Answer View All Answers
hi.... i need tamil nadu SI police modal question paper can an one help me my mailing id is kettaven46@gmail.com
Subbu starts from a point O at 10.00 am , overtakes Ajay, who is moving in the same direction, at 11.00 a.m. and Bhuvan moving in the opposite direction at 12.00 (noon). If the speed of Bhuvan is one fourth the speed of Subbu, at what time will Ajay and Bhuvan cross each other.
Find the missing word(...),ayw,gec,mki,sqo
In the combinations of 2,3,6,7 how many possible combinations divisible by 4?
If log 0.317=……… and log 0.318=………. Then find the value of log 0.319.
i want rrb tc exam previous pepers
In a classroom, a student is ranked 12th from right and 9th from left. How many students are there in total?
the probability of getting at least in a single through of three coins is
Joe started from Bombay towards pune and her friend julie in opposite direction.they meet at a point .distance travelled by joe was 1.8 miles more than that of julie.after spending some both started there way.joe reaches in 2 hours while julie in 3.5 hours. Assuming both were travelling with constant speed.Wath is the distance between the two cities.
rrb second stage written exam in aptitude test model papers
A Father Has 7 Pennys With Him And 1 Water Melon Is For 1p, 2chickoos For 1p, 3 Grapes Foe 1p. He Has Three Sons. How Can He Share The Fruits Equally?
L:says all of my other 4 friends have money M:says that P said that exact one has money N:says that L said that precisely two have money O:says that M said that 3 of others have money. P:Land N said that they have money. all are liers.Who has money&who doesn't have?
(7*7=49)(4*9=36)(3*6=18) (1*8=8)
how to get the system time dynamically in orcle
Sister's age is twice than that of the brother. If the brother's age is six, what is the sister's age after two years?
