Ques:- There are 9 balls of equal size and same weight(they look similar) except 1. How many weights required to find the dissimilar ball using a weighing balance?
Recent Answer : Added by G Dinesh On 2023-06-10 18:20:22:
Here is the solution to the given version of the puzzle (9 balls, one is heavier, need to identify oddball), where we label the balls A, B, …, I:
1. Weigh ABC versus DEF.
Scenario a: If these (1) balance, then we know the oddball is one of G, H, I.
2. Weigh G versus H.
Scenario a.i: If these (2) balance, the oddball is I.
Scenario a.ii: If these (2) do not balance, the heavier one is the oddball.
Scenario b: If these (1) do not balance, then the oddball is on the heavier side. For simplicity, assume the ABC side is heavier, so the oddball is one of A, B, C.
2. Weigh A versus B.
Scenario b.i: If these (2) balance, the oddball is C.
Scenario b.ii: If these (2) do not balance, the heavier one is the oddball.
answer is maximum of 2.
Ques:- Is it possible to view the contents of my laptop on my tv and if so, how do I do it?
Recent Answer : Added by Geoffrey On 2022-09-15 16:35:49:
Yes, it is possible by using a HDMI cable
Ques:- How do you feel about reporting to a younger person (minority, woman, etc)?
Ques:- The temperature at Kochi is given by the function: – t2/6+4t+12 where t is the elapsed time since noon. What is the percentage rise (or fall) in temperature between 3.00 PM and 6.00 PM?
Recent Answer : Added by Admin On 2020-05-17 12:04:28:
temp at 3.oo pm is = 22.5
temp at 6.oo pm is = 30
thus, percentage rise= 7.5/30 *100
=25%
Ques:- Sum of two numbers is 80. Greater number exceeds by 5 from four times of the smaller. Find the numbers?
Recent Answer : Added by Admin On 2022-09-29 18:30:23:
Let x and y be the two numbers. And x > y.
Then,
x + y = 80—–(1)
y=80-y
Also,
x = 4y – 5
Solving the two equations,
80 – y = 4y – 5
85 = 5y
Therefore, y = 17
put the value of y in equation(1)
then
x+y=80
x+17=80
x=63
the numbers are 17&63
Ques:- The cost of an item is Rs 12.60. If the profit is 10% over selling price what is the selling price ?
Recent Answer : Added by Ajay On 2022-09-15 16:39:04:
1.26
Ques:- X, Y, Z together started a business. X invested Rs.6000 for 5 months Y invested Rs.3600 for 6 months and Z Rs.7500 for 3 months. If they get a total profit of Rs.7410. Find the share of X?
Ques:- How do u define Success? and what does it mean to you?
Ques:- To get a parabola if you cut a section of?
Recent Answer : Added by Admin On 2020-05-17 12:01:14:
A parabola is a conic section.
So cut a cone obliquely.
Ques:- The average weight of a group of boys is 30 kg. After a boy of weight 35 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally ?
Recent Answer : Added by Vivek verma On 2021-08-25 14:15:38:
let no of boys in group is = x
then total sum = 30 * x
after joining one more boys with a weight of 35 kg the total sum is = 30x + 35
after joining the new student the weight will increase 1 kg
so total sum
30x + 35 = 31(x+1)
x = 4
Ques:- Why do you want this position?
Ques:- The sum of four consecutive even numbers is 292. Evaluate the smallest number?
Recent Answer : Added by priyanhu On 2022-04-02 07:00:15:
Thanq saddha
Ques:- Why do you want to quit your present job?
Ques:- How did you find out about this company?
Ques:- If sachin score 76more than ahzar , and azhar and robin scores sum is 94 and azhar scores 76 less than dravid and dravid score 26 more than robin . What was the total score done in match?
Recent Answer : Added by Uday On 2021-07-21 15:24:48:
Robin =72
Dravid = 98
Azhar = 22
Sachine = 98
Total score = 290
Ques:- A lends Rs. 2500 to B and a certain to C at the same time at 7% p.a. simple interest. If after 4 years, A altogether receives Rs. 1120 as interest from B and C, then the sum lent to C is?
Recent Answer : Added by Nilesh Godle On 2021-07-23 15:26:04:
1500
Ques:- Which company are you working now?
Ques:- Why are you looking for a change?
Ques:- There are twelve consecutive flags at an equal interval of distance. A man passes the 8th flag in 8 seconds. How many more seconds will he take to pass the remaining 4 flags?
Recent Answer : Added by Arpan On 2022-05-17 09:08:01:
4.5
Ques:- What is CT and PT?
Ques:- The seven digits in this subtraction problem are 0, 1, 2, 3, 4, 5 and 6. Each letter represents the same digit whenever it occurs. D A D C B – E B E G is equal to B F E G.What digit is represented by each letter?
Ques:- Was Manmohan Singh the governor of RBI?
Ques:- At what time after 4.00 p.m. is the minutes hand of a clock exactly aligned with the hour hand?
Ques:- A boat covers a certain distance downstream in 1 hour, while it comes back in 1.5 hours. If the speed of the stream be 3 kmph, what is the speed of the boat in still water?
Ques:- 4 * 0.4 * 0.04 * 0.004 = ?
Recent Answer : Added by Ps On 2021-02-11 16:42:38:
0.000256
Ques:- The newly formed 21st district of Haryana is?
Recent Answer : Added by Hamiss On 2022-09-29 16:38:02:
Palwal
Ques:- A cistern has a leak which would empty the cistern in 20 minutes. A tap is turned on which admits 4 liters a minute into the cistern, and it is emptied in 24 minutes. How many liters does the cistern hold?
Ques:- 8400 ? 120 x 15 + 150 = ?
Recent Answer : Added by Admin On 2020-05-17 12:03:34:
8400 ? 120 x 15 + 150 = ?
ans:
8400 % 120 x 15 + 150 = ?
1200
Ques:- Did you specialize in any particular subject?
Ques:- Seventy five years ago pharmacists weighed medicine on balances like the ones you have been using. The mass pieces were very expensive, so a pharmacist would buy as few mass pieces as possible. If a pharmacist had 1-g, 3-g, and 9-g mass pieces, he or she could weight out any number of grams from 1 g to 13 g. Show how could measure all of the masses from 1 g to 13 g using only the three mass pieces given?
Recent Answer : Added by Masuda Akter Tonima On 2021-11-22 18:34:57:
1. 1g
2. 3g with 1g counter
3. 3g
4. 3g plus 1g
5. 3g plus 1 g plus 1g weighed medicine
6. 9g with 3g counter
7. 9g with 1g of counter and 1g weighed medicine
8. 9g with 1g counter
9. 9g
10. 9g plus 1g
11. 9g plus 3g with 1g on counter
12. 9g plus 3g
13. All 3 weights on one side.
Here is the solution to the given version of the puzzle (9 balls, one is heavier, need to identify oddball), where we label the balls A, B, …, I:
1. Weigh ABC versus DEF.
Scenario a: If these (1) balance, then we know the oddball is one of G, H, I.
2. Weigh G versus H.
Scenario a.i: If these (2) balance, the oddball is I.
Scenario a.ii: If these (2) do not balance, the heavier one is the oddball.
Scenario b: If these (1) do not balance, then the oddball is on the heavier side. For simplicity, assume the ABC side is heavier, so the oddball is one of A, B, C.
2. Weigh A versus B.
Scenario b.i: If these (2) balance, the oddball is C.
Scenario b.ii: If these (2) do not balance, the heavier one is the oddball.
answer is maximum of 2.