There are 8 billiard balls, and one of them is slightly
heavier, but the only way to tell was by putting it on a
weighing scale against another. What's the fewest number of
times you'd have to use the scale to find the heavier ball?

Answer Posted / ganesh

According to the `principle of moments` theory, we have to
weigh 3 times, to find the heavier ball.

Is This Answer Correct ?    20 Yes 20 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

A & B can do a piece of work in 21 & 24 days respectively. The started to work together but after some days BA leaves, B completes the remaining work in 9 days. After how many days does A leaves

725


Two chords of lengths L1 and L2 are drawn in a circle. Their lengths are inversely proportional to the straight distance joining the centre.Find the radius of circle.

759


Six squares of same dimension are kept side by side to make a rectangle with a perimeter of 182 cm. what is the perimeter of each square.

708


A building with height D shadow upto G. What is the height of a neighbouring building with a shadow of C feet.

880


A worker pay Rs20 a day ,he works 1,1/3,2/3,1/8,3/4 in a week.What is the total amount paid to the worker.

782






there is a matrix N x N .Its elements consist of either value =1 or value=0. If there is a any zero in the row, then the output matrix should have all zeroes in that row. If there is a single zero in any column then that column should have all zeroes n the output matrix. write the function to perform these operations. i want a solution in c/c++ language

1877


I am writing the APSRTC OUT post.so i dont know the managerial aptitude.If any one know about this or refer any book, please give the information to my Mail id is narayanansg@gmail.com

2173


Add a word in starting of SCAPE and at the end of Grass, u will get two different word

698


What is the height of the cone of diameter 12 cm that is formed after melting a sphere of 6 cm diameter?

624


a cylinder ingot 6cms in diameter and 6 cms in height is and spheres all of the samesize are made from the material obtained.what is the diameter of each sphere?

842


complete the series: x y z u v w r s t __

1329


One passage was on playing cards. know how many diamonds and etc.

663


Q.19 Alok and Bhanu play the following min-max game. Given the expression N=9+X+Y–Z where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be 27 18 20 Answer is: 20 can someone plzzzzzzzzz tell me how this answer is calculeted???

2441


hai am Deepak here i have my exam on 3rd jan 2010 for the post of officers job in karnataka bank so kindly plz send me model papers . thank u

2483


There are 200 employees in a company. An external vendor is chosen to Serve coffee twice a day. 100 coffee cups were offered by the company but as an incentive to have the cups in tact at the end of the day, the company offered 30 paise for every cup remained safely and charged 90 paise for every broken cup. At an end of a day, the vendor received Rs. 24. How many cups did the vendor break? 10, 20, 8, 5?

1628