Ques:- Can you share with me a time when you had to quickly analyze a situation and make a quick decision?
Ques:- A man rows to a place 48 km distant and come back in 14 hours. He finds that he can row 4 km with the stream in the same time as 3 km against the stream. The rate of the stream is:
Ques:- If for a psu if que.comes like what u can contribute towards the progress of company..then what should be the ans?
Ques:- How to detect virus in PC ? Why a file prefixed with '~'symbol is said to be virus ? Is it true that the PC is infected with virus when we find any such files ?
Ques:- Which of the following is not the main head of expenditureof the central government?
A. Defence expenditure
B. Public health
C. Grants-in-aid
D. Interest of loans
Ques:- Introduce myself and about my smart class training experience.
Ques:- What is it when you have three you have three, when you have two you have two and when you have one there is none?
Ques:- A 70 cm long wire is to be cut into two pieces so that one piece will be 2/5th of the other, how many centimeters will the shorter piece be?
Recent Answer : :
28
Ques:- Why I hire you and why i don't hire you?
Ques:- Which one of the following numbers is divisible by 3?
A. 2345678
B. 2876423
C. 4006020
D. 9566003
Recent Answer : :
The correct ANS: option C
Ques:- Can u make 120 with 5 zero?
Recent Answer : :
(0! + 0! + 0! + 0! + 0!)! = 120
Here ‘!’ symbol is used for factorial.
And 0! = 1
= (0! + 0! + 0! + 0! + 0!)!
= (1 + 1 + 1 + 1 + 1)!
= 5!
= 120
Ques:- What is the most rewarding part about your job?
Ques:- What is you computer knowledge?
Ques:- Please narrate your daily routine.
Ques:- A 16 story building has 12000ft on each floor. Company A rents 7 floors and company B rents 4 floors. What is the number of square feet of unrented floor space?
Recent Answer : :
60000
Ques:- Why are you change current job ??
Ques:- There is a pyramid with 1 cup at level , 2 at level 2 , 3 at level 3 and so on.. It looks something like this 1 2 3 …
Ques:- Three pipes of same capacity can fill a tank in 8 hours. If there are only two pipes of same capacity, the tank can be filled in?
Recent Answer : :
3×8=24=2xt ===> t=12hours
Ques:- In each questions below are given two statements followed by two conclusions numbered I and II.
Statements :
Some men are educated. Educated persons prefer small families.
Conclusions :
I. All small families are educated.
II. Some men prefer small families.
Statements :
Some men are educated. Educated persons prefer small families.
Conclusions :
I. All small families are educated.
II. Some men prefer small families.
A. if only conclusion I follows
B. if only conclusion II follows
C. if either conclusion I or II follows
D. if neither conclusion I nor II follows
E. if both conclusions I and II follow
Ques:- What are your future goals? Tell me about your short term and long-term goals.
Ques:- What do we expect from you if you get hired?
Ques:- Given a grid of m X n. Find out the all possible ways to move from (0,0) to (m,n)
Ques:- Two trains of length 100 m and 200 m are 100 m apart. They start moving towards each other on parallel tracks, at speeds 54 kmph and 72 kmph. After how much time will the trains meet?
Ques:- Any personal details as a HR requirement
Ques:- A bundle of balloons contains 12 packets and there are 24 bundles in a box. The retail price of a packet of balloons is given by the user and calculate the price of such 5 boxes.
Ques:- What is the difference between marketing and sales?
Ques:- The recipient of Indira Gandhi Prize for Peace, Disarmament and Development for 2008 is?
Ques:- Why do you want to leave the current job that you are in now?
Ques:- Find the odd man out:
10, 25, 45, 54, 60, 75, 80
10, 25, 45, 54, 60, 75, 80
A. 75
B. 54
C. 45
D. 10
Recent Answer : :
54
Ques:- Why you join this company?
Hint: Assume that the speed of the stream is x and the speed of the boat in still water is x. From the statement of the question form two equations in two variables x and y. This system is reducible to linear equations in two variables. Reduce the system to a system of linear equations in two variables by proper substitutions. Solve the system of equations using any one of the methods like Substitution method, elimination method, graphical method or using matrices. Hence find the value of x satisfying both the equation. The value of x will be the speed of the stream.
Complete step-by-step answer:
Let the speed of the stream be x, and the speed of the boat in still water be y.
We have the speed of the boat upstream = y-x.
Speed of the boat downstream = y+ x.
Now since it takes 14 hours to reach a place at a distance of 48 km and come back, we have the sum of the times taken to reach the place downstream and time taken to return back upstream is equal to 14.
Now, we know that time =Distance speed
Using, we get
Time taken to reach the place =48y+x and the time taken to return back =48y−x.
Hence, we have
48y+x+48y−x=14
Dividing both sides by 2, we get
24y+x+24y−x=7 —–(i)
Also, the time taken to cover 4km downstream is equal to the time taken to cover 3km upstream.
Hence, we have 4y+x=3y−x
Transposing the term on RHS to LHS, we get
4y+x−3y−x=0 ——– (ii)
Put 1y+x=t and 1y−x=u, we have
24t+24u=7 ——-(iii)4t−3u=0 ——–(iv)
Multiplying equation (iv) by 6 and subtracting from equation (iii), we get
24t−24t+24u+18u=7⇒42u=7
Dividing both sides by 42, we get
u=742=16
Substituting the value of u in equation (iv), we get
4t−3(16)=0⇒4t−12=0
Adding 12 on both sides, we get
4t=12
Dividing both sides by 4, we get
t=18
Reverting to original variables, we have
1y+x=18 and 1y−x=16
Taking reciprocals on both sides in both equations, we have
y+ x=8 ——- (v)y−x=6 ——–(vi)
Adding equation (v) and equation (vi), we get
2y=14
Dividing both sides by 2, we get
y=7.
Substituting the value of y in equation (v), we get
7+x=8
Subtracting 7 from both sides we get
x = 8-7 =1
Hence the speed of the stream is 1 km/hr.