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 do you prefer for this job?
Ques:- Unix basics such as find, grep, pipes tees, wildcards, chmod.
Ques:- How did you spend your free time
Ques:- A man shows his friend a woman sitting in a park and says that she the daughter of my grandmother’s only son. What is the relation between the two?
Recent Answer : Added by as On 2021-05-16 16:12:43:
brother and sister
Ques:- Why do you want this position?
Ques:- Reason for Joining the organization.
Ques:- Are you willing to put the interests of the organization ahead of your own?
Ques:- 30% apples out of 450 are rotten. How many apples are in good condition?
A. 180
B. 240
C. 315
D. 335
Recent Answer : Added by Venu On 2022-08-14 16:44:44:
450÷100×30=135
450-135=315
Ans: 315
Ques:- Ravi can do a piece of work in 30 days while Prakash can do it in 40 days. In how many days will they finish it together?
Recent Answer : Added by SHUBHAM PATIDAR On 2021-10-07 15:41:16:
Ravi do a work in 30 days
Prakash do a work in 40days
then both work together 1/30+1/40=70/1200
then solve values 120/7 is 17(1/7) days
Ques:- Whch is your favroute sport?tell in brief about it?
Ques:- 36 people {a1, a2, …, a36} meet and shake hands in a circular fashion. In other words, there are totally 36 handshakes involving the pairs, {a1, a2}, {a2, a3}, …, {a35, a36}, {a36, a1}. Then size of the smallest set of people such that the res…
Recent Answer : Added by Admin On 2022-09-28 17:54:42:
answer is 12
bcoz
there are 36 people and atmost he can shake for 3 people so
36/3=
12
Ques:- what is the angle between teo hands of a clock when time is 8-30?
Recent Answer : Added by Admin On 2020-05-17 12:00:00:
75 degrees
30h – 11/2 m = 240 – 165 = 75 ..
Ques:- From a pack of cards two cards are drawn one after the other, with replacement. The probability that the first is a red card and the second is a king is -.
Recent Answer : Added by Admin On 2022-09-29 19:02:13:
Explanation:
Let E1 be the event of drawing a red card.
Let E2 be the event of drawing a king .
P(E1 ∩ E2) = P(E1) . P(E2)
(As E1 and E2 are independent)
= 1/2 * 1/13 = 1/26
Ques:- Three pipes A, B and C can fill a tank in 6 hours. After working at it together for 2 hours. C is closed A and B can fill the remaining par in 7 hours. The number of hours taken by C alone to fill the tank is?
Recent Answer : Added by Mohit Hurkat On 2022-01-08 16:07:14:
13.5
Ques:- Two trains A&B start at opposite points 120km at 60kmph. A fly starting along with train A at 120kmph reaches B then returns back to touch and continue. By the time two trains meet how much distance the fly would have travelled?
Recent Answer : Added by Admin On 2020-05-17 12:01:13:
By 1hour both trains meet, so the distance travel by fly in
1hr is 120km.
Ques:- How does this position compare with others you’re applying for?
Ques:- Which colour do u like?
Ques:- If (n – 1) is an odd number, what are the two other odd numbers nearest to it?
A. n, n – 1
B. n, n – 2
C. n – 3, n + 1
D. n – 3, n + 5
Recent Answer : Added by Rohan On 2021-11-13 11:02:06:
c
Ques:- Evaluate the sum of all even integers between 99 and 301?
Recent Answer : Added by Jagadeesh On 2022-09-15 16:37:00:
Summation of 301 – summation of 99
=41550
Summation of n=((n*n+1)/2)
Ques:- Do you consider yourself a self-starter? If so, explain why ( and give examples)
Ques:- A man travels a roller coaster. He says 1/3rd of the children are before me and 3/4th of the children behind me. How many of them are there?
Ques:- Given a triangle, how do you divide it into 5 triangles of equal area?
Ques:- A box contains nine bulbs out of which 4 are defective. If four bulbs are chosen at random, find the probability that exactly three bulbs are good?
Recent Answer : Added by Mubeen Mahomed On 2021-08-28 11:27:12:
Can someone confirm that it is : 5/9 * 4/8 * 3/7 = 11.9% that you choose 3 good bulbs in a row
Ques:- In how many years will a sum of money doubles itself at 5% per annum on simple interest?
Ques:- How long have you been here and how many years have you worked in UAE?
Ques:- If on an item a company gives 25% discount, they earn 25% profit. If they now give 10% discount then what is the profit percentage.(a) 40%(b) 55%(c) 35%(d) 30%
Recent Answer : Added by Soumyadip Dutta On 2022-09-02 17:02:21:
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.