Interested to Buy Any Domain ? << Click Here >> for more details...
You have 9 marbles. 8 marbles weigh 1 ounce each, & one
marble weighs 1.5 ounces. You are unable to determine which
is the heavier marble by looking at them. You have a
weighing scale that consists of 2 pans, but the scale is
only good for 2 total weighings.
How can you determine which marble is the heaviest one using
the scale & in 2 weighings?
- 5 Answers
- 27261 Views
- Facebook, I also Faced
- E-Mail Answers
Answer Posted / guest
Divide 9 marbles into 3 groups of 3 marbles each.
Take any 2 groups and place them on each pan. If they
balance, remove the marbles from the pans, & place any 2 of
the marbles from the remaining unweighed group on the pans,
1 on each pan.
If one is heavier, it is the heavier marble, but if they
balance, the remaining unweighed marble is the heavier one.
If your first weighing does not balance, remove the marbles
from the lighter pan, & place 1 marble on each pan from the
heavier pan. The heavier 1 is the 1.5 ounce marble, but if
they balance, then the marble from the heavy pan from the
first weighing that was not weighed in the second weighing
is the heavy 1.
| Is This Answer Correct ? | 62 Yes | 5 No |
Post New Answer View All Answers
Three neighbours are there. 1st one lends 2nd and 3rd that many no.of tractors that then already each had.After few months , 2nd lends to 1st and 3rd that many tractors then they had. After a few months 3rd lends to 1st and 2nd that many tractors then they had.Now each of them got 24. Find howmany they had initially?
plz send me aptitude test questions on my email id bpraichur@gmail.com
In a soap company a soap is manufactured with 11 parts. For making one soap you will get 1 part as crap. At the end of the day u have 251 such scraps. From that how many soaps can be manufactured?
What is the syllabus for numerical aptitude exam to be held by the United bank of India. Plz inform me through email. Thanking You!
In rail road there are some stations. Each station should have tickets to all other stations.If they add some new stations they need 46 more tickets.How many stations are there before and after adding the stations?
There is puzzle with the word "CONSTANTINE" and exactly don't know the question if anybody knows the Q&A plz send it ahmed.basha.munna@gmail.com
4_4_4_4=22 use all sign of maths
4 cards are placed on a table, each card has two colors. U don't know the color of the back side of eachcard.4 persons A B C and D are sitting on the table before the cards. They can see Red, Green Red and blue.Out of the 4 poeple 2 always lie. They see the color on the reverse side and give the following comment A: Yello/green B: Neither Blue/nor Green c: Blue/Yello D: Blue/ Yello find out the color on the other side of the 4 cards. No. of animals is 11 more than the no. of birds. If the no. of birds were the no. of animals and no. of animals were the no. of birds( ie., interchanging no.s of animals and birds.), the total no. of legs get reduced by one fifth (1/5). How many no. of birds and animals were there?
At 6o'clock ,a watch strokes 6 times.The time between first and last is 30secs.At midnight 12o' clock how much time for all strokes?
sir i need catholic syrian bank previous question papers fully. it will be helpful for me to greater extend .please do the needful to me.
Ship is 180 miles away from shore. At that time a plane started from shore to pass some information to the ship with 10 times velocity of ship's velocity. At what distance from shore they will meat?
what three specific job positions do you target from qatar airways group u.k?
sir i need generalKnowledge previous questions for rrb secunderabad goods guard exam
foot is related to man in the same way hoof is related to...........
P pages read in d mins after day p+1 pages read in d+1 mins last day 379 pages done in 317 mins find p+4
