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?
Answers were Sorted based on User's Feedback
Answer / dilip kumar
2 times should be fine. split the 8 balls into 3, 3 and 2.
Incase the hevier one is in one of the set, place the 3
balls each to weigh and find the heavier pan and pick them
weight two of the three in each pan. incase the two balls
are equal, then the one in hand is heavier.
From case 1. if both the three sets are equal, weight the
other two balls one in each pan and you can find the
heavier one.
Thus 2 times you may have to use the wieghing pan
Is This Answer Correct ? | 50 Yes | 4 No |
Answer / 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 |
Answer / deepak
1.in the first attempt we would be able to get the heaviest
ball.
Is This Answer Correct ? | 5 Yes | 20 No |
7 students can complete a task of making 9 scientific models in 21 days. How many students can make 3 models in 14 days.
If from a book of 100 pages, some pages were torn off, and the sum of remaining pages comes out to be 4949. How many minimum number of pages were torn off?
lowest common factor of 24 , 36 and 40 is?
X and Y live in a North-South parallel street. X travels 10 km towards North to reach the east-west street . Y travels 6 km towards south to reach the east ?west street . X travels now 4km towards east and y travels 8km towards west and they met each other. What is the distance between x and y?
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
0 Answers Consultancy, Indian Overseas Bank,
please i need help on getting hevron nigeria aptitude test questions.
BOTH WHICH TEAM IN FINAL IPL 2009 & WHO IS WIN
A lady has fine gloves and hats in her closet- 25blue, 7 red, and 9 yellow. The lights are out and it is totally dark. In spite of the darkness, she can make out the difference between a hat and a glove. She takes out an item out of the closet only if she is sure that if it is a glove. How many gloves must she take out to make sure she has a pair of each color?
I want sbi clerk exame question bank
If it is possible to make only one meaningful word with the second, the third, the sixth and the eighth letters of the word FRAGMENT, using each letter only once, then which of the following will be the third letter of that word? If no such word can be formed, the give ?X? as the answer and if more than one such words can be formed, then give ?Y? as the answer. (a) A (b) E (c) T (d) X (e) Y
in base representation for a rupee 100 paise,then base 8 representation what is rupee value .
What kind of salary of State Bank Of India Employee add total?