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:- Are you sure you can join?
Recent Answer : Added by Tadlo mebrat On 2022-08-14 16:31:20:
NO but i hope to you hire me
Ques:- A delegation of 5 members has to be formed from 3 ladies and 5 gentlemen. In how many ways the delegation can be formed, if 2 particular ladies are always included in the delegation?
Ques:- If you found 10 million dollars that belongs to nobody, what would you do?
Recent Answer : Added by Prajapati mitesh On 2022-08-14 16:41:51:
I will try to find that person
Or give that bag to police ..
Ques:- Describe briefly your standards of success?
Ques:- Communication system
Ques:- In town of 500 people, 285 read Hindu and 212 read Indian express and 127read Times of India 20 read hindu and times of India and 29 read hindu and Indian express and 35 read times of India and Indian express. 50 read no news paper. Then how many read all the three paper?
Recent Answer : Added by Admin On 2020-05-17 12:02:15:
500 = Total+50
Total(450) = only one paper(p) + 29+20+35 + all three (g)
285+212+127 = p + 2( 29+20+35 )+ 3g
solve above .. to get g = 45 …
( small corrctn .. i think .. questn shud be 20 read ONLY
hindu and
times of India and 29 read ONLY hindu and Indian express
and 35
read ONLY times of India and Indian express)
Ques:- What made me think about joining the social sector?
Ques:- About Technical editing.
Ques:- if a man byes 1 lt of milk for 12 Rupees and mixes with 20% of water and sells it for Rs. 15 then what is percentage of gain
Recent Answer : Added by Admin On 2020-05-17 12:00:07:
After the mixing, 1lt of the mixture has 0.8lt of milk and 0.2lt of water. 1lt of milk costs Rs.12 so 0.8lt of milk costs 0.8 x 12 = 9.6
He sells the mixture at Rs.15,
so profit%=(15-9.6)/9.6 x 100 = 56.25%
Ques:- 2056 x 987 = ?
A. 1896172
B. 1936372
C. 1923472
D. 2029272
Recent Answer : Added by Nirbhay Singh On 2021-12-20 03:54:47:
1896172
Ques:- Find the smallest number which should be multiplied with 520 to make it a perfect square.
Recent Answer : Added by Bipul On 2022-03-09 16:42:16:
130
520 = 26 * 20 = 2 * 13 * 22 * 5 = 23 * 13 * 5
Required smallest number = 2 * 13 * 5 = 130
130 is the smallest number which should be multiplied with 520 to make it a perfect square.
Ques:- What is your core area of competency?
Ques:- What are the achievements in your last 2.9 years of experience?
Ques:- Complete the series. 1/2, 3/4, 5/8, 7/16, ?
Recent Answer : Added by Tarif On 2022-09-28 17:42:56:
9/32
Ques:- You are given weights of order 1kg 3kg 9kg 27kg 81kg and so on…(powers of 3)A weight of N kg is placed on any one of the empty pans of the balance.You are supposed to add weights to both pans of the balance and make them equal.You can use one weight only once..i.e., you can't use 2 number of 3kg weights.
Ques:- Myself, education details and total working experience with details.
Ques:- Two candles of equal lengths and of different thickness are there. The thicker one will last of six hours. The thinner 2 hours less than the thicker one. Ramesh light the two candles at the same time. When he went to bed he saw the thicker one is twice the length of the thinner one. For how long did Ramesh lit two candles .
Recent Answer : Added by Admin On 2020-05-17 11:59:20:
In 3 hours thinker candle becomes half
In the same time thinner candle becomes one fourth. Now the
required condition is satisfied. So 3 Hours
Ques:- Your favourite area of interest
Ques:- Personal background & qualification.
Ques:- In a factory, 'a' men work 'b' hours a day and produce 'c' articles each day. If 'd' men are released, how many hours a day will the remaining men have to work to produce 'c' articles each day? 1]ab/d 2]ab/b 3]a-d/b 4]ab/a-d
Ques:- What you wish now?
Ques:- How long are you going to work with us?
Ques:- How do you feel about working weekends and night shifts?
Ques:- Aren?t you overqualified for this position?
Ques:- When do you think a team fails?
Ques:- Can you pinpoint any specific things in your past experience that affected your present career objectives?
Ques:- What are your plans for the future in terms of higher education?
Ques:- A man purchased 15 pens, 12 books, 10 pencils and 5 erasers. The cost of each pen is Rs.36, each book is Rs.45, each pencil is Rs.8, and the cost of each eraser is Rs.40 less than the combined costs of pen and pencil. Find the total amount spent?
Recent Answer : Added by Admin On 2022-09-29 18:50:44:
Solution:
As given, we have,
The cost of one pen = 36 Rs.
So, the cost of 15 pens = 36 × 15 = 540 Rs.
The cost of one book = 45 Rs.
So, the cost of 12 books = 45 × 12 = 540 Rs.
The cost of one pencil = 8 Rs.
So, the cost of 10 pencils = 8 × 10 = 80 Rs.
Now,
the cost of each eraser is 40 Rs. less than the combined costs of pen and pencil.
So,
Combined costs of pen and pencil = 36 + 8 = 44 Rs.
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.