Interested to Buy Any Domain ? << Click Here >> for more details...
There are 80 coins, among them one coin weighs less compared
to other. You are given a physical balance to weigh. In how
many wieghings the odd coin can be found.
- 8 Answers
- 27143 Views
- CTS, lenovo, UHG, I also Faced
- E-Mail Answers
Answer Posted / saranya
The answer is 4....The minimum weighings required is 4.
Its like this...split 80 into 40 and 40 .We can find the the
40 which has the least weight.Next split this 40 into 20 and
20 ...Then split the one that weighed less into 10 and
10....Similarly We can find the one which is less by 6
weighing. But the answer is 4(The monimum weighing)
Can anyone tel me how?
| Is This Answer Correct ? | 18 Yes | 18 No |
Post New Answer View All Answers
A student gets 70% in one subject, 80% in the other. To get an overall of 75% how much should get in third subject.
A plane goes from Chicago to Columbus and then comes back. It takes the same time to travel in either ways. It leave Chicago early in the morning 0644 LOCAL TIME and reaches the destination Columbus at 0849 LOCAL TIME. In the same evening it leave Columbus at 1625 hrs LOCAL TIME and reaches the destination at 1638 LOCAL TIME. Find the time that the plane takes to travel either way?
I and two of my friends were playing a game. For each win I get Rs 3. Totally I had three wins. Player 2 got Rs.9 and player 3 got Rs 12. How many games had been played?
What is the selling price of a scooter? If the cost of the scooter is Rs 50 and a profit of 10% over selling price is earned.
Seema's weight is 25% of Sunita's weight and 40% of Tanisha's weight. What percentage of Tanisha's weight is Sunita's weight?
There is square of side 6 cm .A circle is inscribed inside the square Find the ratio of area of circle to the squqre .
Find the correct meaning of the following phrase: Man of few words
A sum of Rs 312 is divided among 100 boys and girls such that every boy gets an amount of Rs 3.60 and every girl gets 2.40 Rs. Calculate the number of girls in the group.
No of financial emergency announced by president
A boy picks up the phone and asks" who are you?" The voice from the other side answers" I am your mother's mother in law".What is the relation of the boy with the fellow speaking at the other end.
Imagine 4 persons A,B,C,D.(It is a strength determining game). A found it hard,but could pull 'c' and 'd' to his side. AC and BD pairs on opposite sides found themselves equally balanced. When A and B exchanged their positions to form pairs AD and BC ,BC pair could win and pull AD to their side.Order the 4 persons in Ascending order according to their strengths.
WHAT IS THE NUMBER OF ZEROS AT THE END OF THE PRODUCT OF THE NUMBERS FROM 1 TO 100
In a class of 60 boys, 45 like pizza, 30 like burger and 5 like neither. Find number of boys who like both?
A can do a piece of work in 30 days, which B can do in 20 days. Both started the work but A left 5 days before the completion of the work. It took how many days to complete the work?
Perimeter of the back whell = 9 feet, front wheel = 7 feet on a certain distance the front wheel gets 10 revolutions more than back wheel . what is the distance?
