Ques:- A polygon has maximum 1325 diagonals. How many vertices does it have?
Ques:- A train covers a distance of 12 km in 10 min. If it takes 6 sec to pass a telegraph post, then the length of the train is?
Ques:- Out of 15 consecutive numbers, 2 are chosen at random. The probability that they are both odd or both prime is?
Recent Answer : :
The answer cannot be determined as there is a particular formula where the consecutive numbers start.
Ques:- How many cubes of edge 2 dm can be cut out of a meter cube?
Recent Answer : :
8 cubes
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Ques:- Hardware Related
Ques:- If in certain language KINDLY is coded as ELDNIK, how is EXOTIC coded in that code ?
Recent Answer : :
CITOXE
Ques:- The least number which when divided by 8, 12 and 16, leave in each remainder 3, is?
Recent Answer : :
LCM=48
Then add remainder 3
ans =51
Ques:- A train running at the speed of 60 km/hr crosses a pole in 9 sec. What is the length of the train?
Recent Answer : :
speed = distence / time
60km/hr=distance / 9 sec
km / hr to m / s==> 60*1000 / 1* 3600 = 16.667
16.667*9 = distance
150 m is the answer
Ques:- Excluding stoppages, the speed of a bus is 54 kmph and including stoppages it is 45 kmph. For how many minutes does the bus stop per hour?
Ques:- Which state in India has the largest coastline?
A. Orissa
B. Gujarat
C. Tamilnadu
D. Andhra Pradesh
Recent Answer : :
gujarat
Ques:- What is the difference between a programmer and the developer
Ques:- The Pravasi Bhartiya Diwas 2009 was held in which city?
Ques:- Mr. Shah decided to walk down the escalator of a tube station. He found that if he walks down 26 steps, he requires 30 seconds to reach the bottom. However, if he steps down 34 stairs he would only require 18 seconds to get to the bottom. If the time is measured fromthe moment the top step begins to descend to the time he steps off the last step at the bottom, find out the height of the stair way in steps?
Recent Answer : :
46
Ques:- How many lines can be drawn in a 2D plane such that they are equidistant from 3 non-collinear points ?
Ques:- Which oil is used for DBP?
Ques:- Asked about qualification details?
Ques:- A pipe fill a tank in 3hrs.another pipe fill that same tankin 2hrs.if both pipe inserted in tank to fill it how timw itwill take to fill?
Recent Answer : :
consider the tank capacity as 90 litres.
to fill the tank in 3 hrs first pipe must flow at a rate of 30 litres/hr
2nd pipe has to flow at a rate of 45 litres/hr
if two pipes are opened at a time the flow rate will become 75 litres/hr
90/75= 6/5 = 1.2= (i.e) 1hr and 12 minutes 1 1/5 hr
Ques:- How to introduce ourself
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Ques:- Why do you want leave teaching job and come to bpo sector?
Ques:- What is your education qualification?
Ques:- Three types of tea the a,b,c costs Rs. 95/kg,100/kg and70/kg respectively. How many kgs of each should be blended to produce 100 kg of mixture worth Rs.90/kg, given that the quntities of band c are equala)70,15,15 b)50,25,25 c)60,20,20 d)40,30,30
Recent Answer : :
B
Ques:- What made me think about joining the social sector?
Ques:- a survey of 100 students at new england college showed the following:7 take english,history and language,17 take english and history,15 take english and language,18 take history and language,48 take english, 49 take history,38 take language.draw a venn diagram and answer the questions how many students
A. take history but neither of the other two?
B. take english and history but not language?
C. take none of the three?
D. take exactly two of the three?
E. do not take a language? (explanation also needed pls)
Ques:- A man said to his son, “I was two-third of your present age when you were born”. If the present age of the man is 48 years, find the present age of the son?
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Ques:- The sum of money at compound interest amounts to thrice itself in 3 years. In how many years will it be 9 times itself?
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Ques:- Abt my final year project (since i m a fresher)
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.