Ques:- If a 200 m long train crosses a platform of the same length as that of the train in 20 seconds, then the speed of the train is
A. 50 km/hr
B. 60 km/hr
C. 70 km/hr
D. 72 km/hr
Recent Answer : Added by Dhiya On 2023-05-31 17:27:59:
3600 sec in 1 hr.. 1000 M in 1 km so to covert m/s to km /hr you multiply the value with (3000/1000) .. so 3000 divided by 1000 will give you 18/5 it’s like constant value.. to convert m/s to km/ hr we can use this 18/5.. hope you understand
Ques:- Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 sec. What is the length of the fast train?
Ques:- A is sister of B. C is brother of D. D is sister of A. Howis B related to D?
Recent Answer : Added by Admin On 2020-05-17 12:03:21:
b)Brother or Sister
Because Bis related to either Brother or Sister.
Ques:- The diameters of two spheres are in the ratio 1:2 what is the ratio of their surface area?
Recent Answer : Added by Jhanvi Puri On 2021-08-15 03:37:35:
3.14
Ques:- Tell me about the most boring job you?ve ever had.
Ques:- How do you rate honesty & Integrity.
Ques:- If Rs.3250 be divided among Ram, Shyam and Mohan in the ratio of 1/2:1/3:1/4 then the share of each are?
Recent Answer : Added by DK BOSS On 2021-07-17 06:27:52:
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 four digit number is divisible by 7 becomes divisible by 3, when 10 is added to it. The largest such number is
A. 9947
B. 9987
C. 9989
D. 9996
Recent Answer : Added by narendra On 2022-09-18 09:02:02:
c
Ques:- What is the rate percent when the simple interest on Rs.800 amount to Rs.160 in 4 Years?
Recent Answer : Added by G Vinayaka Bharadwaj On 2022-01-16 17:16:18:
5%
Ques:- Why do you want to change the current organization
Ques:- What is the next number in the series 4, 9, 25, 49,……
Recent Answer : Added by Balita On 2021-08-17 14:35:47:
121 I. e it is Prime numbers square
Ques:- If each of the odd digits in the number 54638 is decreased by ‘1’ and each of the even digits is increased by ‘1’, then which of the following will be the sum of the digits of the new number?
Recent Answer : Added by Admin On 2020-05-17 12:03:43:
( e ) None of these
Ques:- What is geostaionary satellite ?
Ques:- Three 6 faced dice are thrown together. The probability that all the three show the same number on them is -.
Ques:- What is the coolest hack you’ve ever written?
Recent Answer : Added by Admin On 2020-05-17 12:01:45:
while(true)
{
new Object();
}
Ques:- What is your long-term employment or career objective?
Ques:- What are you better at than anyone else in the world?
Ques:- Regarding my family background
Ques:- Two pipes A and B together can fill a cistern in 4 hours. Had they been opened separately, then B would take taken 6 hours more than A fill the cistern. How much time will be taken by A to fill the cistern separately?
Recent Answer : Added by Vemula Rohan Kumar Reddy On 2021-09-25 16:19:51:
A takes 6 hours to fill
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:- Is there anything I've mentioned that makes you think I'm not the best candidate for this job?
Ques:- A pole seen from a certain distance at an angle of 15 degrees and 100 meters ahead by 30 degrees. What is the height of pole ?
Recent Answer : Added by Admin On 2020-05-17 12:02:03:
tan 30=h/x
tan 15=h/100+x
so h/tan 30=(h/tan 15)-100
=33.33app
Ques:- Placing Rooks in a chess board
Ques:- Tell us something about your past working experience?
Ques:- 5 men and 12 boys finish a piece of work in 4 days, 7 men and 6 boys do it in 5 days. The ratio between the efficiencies of a man and boy is?
Recent Answer : Added by Upendra Dwivedi On 2022-08-14 16:33:18:
6/5
Ques:- A and B can do a work in 5 days and 10 days respectively. A starts the work and B joins him after 2 days. In how many days can they complete the remaining work?
Recent Answer : Added by Faizan On 2022-08-14 16:28:54:
4
Ques:- Describe for me one or two of the biggest disappointments in your work history?
Ques:- X, Y, Z enter into a partnership investing Rs. 35,000, Rs. 45,000 and Rs. 55,000 respectively. The respective shares of X, Y, Z in annual profit of Rs. 40,500 are:
Recent Answer : Added by Supriya p On 2022-09-28 17:42:52:
X share is 10500
Y share is 13500
Z share is 16500
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.
3600 sec in 1 hr.. 1000 M in 1 km so to covert m/s to km /hr you multiply the value with (3000/1000) .. so 3000 divided by 1000 will give you 18/5 it’s like constant value.. to convert m/s to km/ hr we can use this 18/5.. hope you understand