Ques:- A 6 inch length cylindrical through hole is drilled through the center of sphere, what will be the remaining volume of sphere ?
In this question only one data is given ie., hole length - 6". In the question there is no mistake.
Find the answer.
Recent Answer : Added by Admin On 2020-05-17 12:05:14:
volume of a sphere is 4/3 * pi * r^3
by drilling a hole 6 inches long the volume of the sphere is
not affected bcos the hole is a 1 dimension quantity..(say a
straight line) n so it does not have any value w.r.t volume…
hence the volume of the sphere does not change..
Ques:- A polygon has maximum 1325 diagonals. How many vertices does it have?
Recent Answer : Added by DK BOSS On 2021-07-15 08:05:23:
The formula to find number of diagonals (D) given total number of vertices or sides (N) is
N * (N – 3)
D = ———–
2
Using the formula, we get
1325 * 2 = N * (N – 3)
N2 – 3N – 2650 = 0
Solving the quadratic equation, we get N = 53 or -50
It is obvious that answer is 53 as number of vertices can not be negative.
Alternatively, you can derive the formula as triange has 0 diagonals, quadrangel has 2, pentagon has 5, hexagon has 9 and so on……
Hence the series is 0, 0, 0, 2, 5, 9, 14, …….. (as diagram with 1,2 or 3 vertices will have 0 diagonals).
Using the series one can arrive to the formula given above.
Ques:- Why you choice Mechanical Engineering
Ques:- Each side of a rectangle is increased by 100% . How much the percentage of area will be increased
Recent Answer : Added by Admin On 2020-05-17 11:59:16:
x,y sides of rectangle
area=xy
increased by 100% =double length
hence
new area=4xy
increased area=4xy-xy=3xy
percentage of area will be increased
by 300%
Ques:- Who referred you to this company?
Ques:- Who or what in your life would you say influenced you most with your career objectives?
Ques:- UK Shift timings and salary
Ques:- How many branches you handled?
Ques:- You have 20 white and 13 black balls in a bag. You pull out 2 balls one after another. If the balls are of same color, then you replace them with a white ball ? but if they are of different color, you replace them with a black ball. Once you take out the balls, you do not put them back in the bag ? so the balls keep reducing. What would be the color of the last ball remaining in the bag?
Recent Answer : Added by dean On 2022-09-15 16:36:23:
white
Ques:- Here is a sequence of numbers: 1 11 21 1211 111221 It seems to be a strange sequence, but yet there is a system behind it… What is the next term in this sequence?
Recent Answer : Added by Kajal Thosar On 2022-05-17 09:09:10:
1121221
Ques:- When can you join our company?
Recent Answer : Added by DK BOSS On 2021-07-30 16:29:54:
I can join your company with in one month that is my notice period time
Ques:- 52 * 40.1 = ?
Ques:- Describe a time when everyone in the meeting was opposing your ideas. How did you manage to work it out?
Ques:- A train 300 m long crossed a platform 900 m long in 1 minutes 12 seconds. The speed of the train (in km/hr) is
A. 40
B. 50
C. 60
D. 70
Recent Answer : Added by Fatima On 2022-09-24 14:33:38:
The Answer is c
Ques:- How to sell a mobile phone
Ques:- World Golf Championship, 2007 has been won by?
Ques:- why would u like to join this company?
Ques:- Are you lived at Delhi?
Ques:- Evaluate x for the equation : 19(x + y) + 17 = 19(-x + y) – 21
Ques:- In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively. So as to get a mixture worth Rs. 16.5/kg?
A. 3 : 7
B. 5 : 7
C. 7 : 3
D. 7 : 5
Recent Answer : Added by kishan sah On 2022-09-02 17:04:57:
7:3
Ques:- Was your MBA full time or Part Time ?
Ques:- Which job you want out of- Management Trainee Purchases/ Financial Analyst/ International Marketing?
Ques:- A train speeds past a pole in 15 sec and a platform 100 m long in 25 sec,find its length is?
Recent Answer : Added by Fatima On 2022-09-24 14:33:37:
It is assumed to be constant. Now, to cross past the pole, the train should cover a distance of x meters. Now, the time taken by the train to cross a platform of length 100 m is 25 seconds. Hence, the length of the train is 150 m.
Ques:- Aptitute And technical
Ques:- A company rented a machine for Rs.700/- a month. Five years later the treasurer calculated that if the company had purchased the machine and paid Rs.100/- monthly maintenance charge, the company would have saved Rs.2000/-. What was the purchase price of the machine?
Recent Answer : Added by Admin On 2020-05-17 12:00:26:
34000
Ques:- A boy has nine trousers and 12 shirts. In how many different ways can he select a trouser and a shirt?
Recent Answer : Added by Admin On 2022-09-27 18:20:20:
108
Ques:- Four sisters- Suman, Simran, Ruma and Seema are playing a game such that the loser doubles the money of each of the other players from her share. They played four games and each sister lost one game in alphabetical order. At the end of fourth game, each sister has Rs. 32. How many rupees did Suvarns start with?
Ques:- Who is the chief justice of supreme court?
Ques:- Some persons decide to raise Rs. 3 lakhs by equal contribution from each of them. If they contributed Rs. 50 extra each, the contribution increased to Rs. 3.25 lakhs. How many persons were there ?
A. 400
B. 500
C. 600
D. 700
E. None of these
Recent Answer : Added by BINDHU REDDY On 2021-08-09 01:51:48:
volume of a sphere is 4/3 * pi * r^3
by drilling a hole 6 inches long the volume of the sphere is
not affected bcos the hole is a 1 dimension quantity..(say a
straight line) n so it does not have any value w.r.t volume…
hence the volume of the sphere does not change..