Interested to Buy Any Domain ? << Click Here >> for more details...
There are 8 stones which are similar except one which is
heavier than the others. To find it, you are given a pan
balance. What is the minimal number of weighing needed to
find out the heaviest stone ?
- 19 Answers
- 40450 Views
- iFlex, TCS, I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / murthy
Answer is 2.
Solution:
Divide the stones into 3,3,2. Put 3 stones on left pan and
3 stones on right pan. If heavier stone is present in any
one of the side then that side will get down. Take the 3
stones from that side and again put 1 stone on left and 1
on right. We can find the heavier stone from this. If both
are equal then the remaining one is heaviest.
While dividing the stones as 3,3,2 when both sides are
equal then take the remaining 2 stones and put it on left
and right.
| Is This Answer Correct ? | 30 Yes | 0 No |
Answer / vishwa
Answer : 2
hint : divide the stones into 3,3,2 groups
| Is This Answer Correct ? | 10 Yes | 0 No |
divide the stones 3,3,2. put 3 stones in both sides of the
pan balance. if the stones have equal weight.if there is no
deviation in pan balance.Then put remaining 2 stones in the
pan balance.Then we take the weightiest ball in the 8 stones
with 2 times weighted.
| Is This Answer Correct ? | 7 Yes | 2 No |
Answer / prasaanth
The answer is 2, 3 balls on each of the pans of the
balancing scales, should the scales balance then from the
remaining 2, we can find the heavier ball through another
comparison which gives 2 comparisons, however in the first
place should the balance not balance, then from the heavier
group, pick 2 more balls (from 3) and weigh them, if the
scales balance then the remaining ball is the heaviest one
and if the scales do not balance then the one that is heavy
can be seen from that instant itself-- THUS THE MOST
OPTIMAL ANSWER IS "2"
| Is This Answer Correct ? | 5 Yes | 1 No |
Answer / shameer
2
3 3 2
3=3 , then weigh the other 2
else if
3!=3
get the lighter one (3)
take 2 at a time weigh.
i think u got it
| Is This Answer Correct ? | 3 Yes | 0 No |
Answer / alphy
Ans 2.
3 ---|----- 3 if same weight take the other two
obliviously one will be hevier than the other.
otherwise
in case of 3-----|----3 if one side is heavier, take those 3
keep 1--------|--------1 and check if both same and the
remaining one from the group of 3 we kept will be heavier,
otherwise one among the two we weighed will be heavier
so ans is 2.
| Is This Answer Correct ? | 2 Yes | 0 No |
Reshma is standing in front of her room.Ramu is coming from north towdars her and he can see his shadow falling on his right.In which direction she is standing?
Arrange five planets such that 4 of them add up to 5th planet numerically. Each of the letters of the planet should represent a unique number from the range 0 - 9. You have to use all ten digits. There is an amazing mathematical relationship exists among the names of the planet.
two father and two son went to a hotel, each paid rs-5 but still total amount was rs-15, how?
one hen and its three kids where cross the road and one kid said we all seven cross road sucessfully,how seven?
Why do you want to do job in Pharma midical company?
If a rook and a bishop of a standard chess set are randomly placed on a chessboard, what is the probability that one is attacking the other? Note that both are different colored pieces.
A man got 30 aples in 1 Rs.Now he want 20% of profit on it. How many apples He should Sell in 1 Rs.??
How would you cut a cake in 8 pieces with only three cuts.
14 Answers CTS, eClerx, Exilant, Google, Infosys,
There are four friends, one weekend they plan to go to a picnic. Each family have husband and wife with two kids each, further each kid has 2 pets. Total how many went to the picnic?
tell us about a time when you failed to meet a deadline.what were the repercussions?
Given the following facts: 1. Dinesh is younger than Farukh and older than Gurmit. 2. Jatin is younger than Chandu and older than Eshrat. 3. Amit is younger than Irfan and older than Chandu. 4. Farukh is younger than Bhavin and older than Hemant. 5. Irfan is younger than Gurmit and older than Jatin. 6. Hemant is older than Gurmit. Who is the Youngest?
John lives in "Friends Society" where all the houses are in a row and are numbered sequentially starting from 1. His house number is 109. Jessy lives in the same society. All the house numbers on the left side of Jessy's house add up exactly the same as all the house numbers on the right side of her house. What is the number of Jessy's house? Find the minimal possible answer.
English 
