Ques:- How big will an angle of one and a half degree look through a glass that magnifies things three times?
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:- 12.05 x 5.4 ? 0.6 = ?
Recent Answer : :
=12.05×5.4/0.6
=12.05×9.0
=108.45
Ques:- The cost of 10 kg of apples is equal to the cost of 24 kg of rice. The cost of 6 kg of flour equals the cost of 2 kg of rice. The cost of each kg of flour is Rs.20.50. Find the total cost of 4 kg of apples, 3 kg of rice and 5 kg of flour?
Recent Answer : :
877.4
Ques:- About my self, regarding customer service.
Ques:- What do you know about US culture?
Ques:- Family Members Working?
Ques:- 9 men and 12 boys finish a job in 12 days, 12 men and 12 boys finish it in 10 days. 10 men and 10 boys shall finish it in how many days?
Recent Answer : :
8days
Ques:- 12% of 5000 = ?
A. 600
B. 620
C. 680
D. 720
Recent Answer : :
1%=50
12%=600
Ques:- Number Series 19,24,20,25,21,26,?
Recent Answer : :
22
Ques:- The cost of 2 chairs and 3 tables is Rs.1300. The cost of 3 chairs and 2 tables is Rs.1200. The cost of each table is more than that of each chair by?
Ques:- You’ve got someone working for you for seven days and a gold bar to pay them. The gold bar is segmented into seven connected pieces. You must give them a piece of gold at the end of every day. If you are only allowed to make two breaks in the gold bar, how do you pay your worker?
Recent Answer : :
1 1 2+4
2 2 1+4
3 1+2 4
4 4 1+2
5 4+1 2
6 4+2 1
7 4+2+1 0
Ques:- The average marks of a class of 30 students is 40 and that of another class of 50 students is 60. Find the average marks of all the students?
Ques:- A is thrice as efficient as B and is, therefore, able to finish a piece of work 10 days earlier than B. In how many days A and B will finish it together?
Recent Answer : :
Let n be the number of days it takes A and B, working together, to finish. And we know B=A+10 and B=3A, so:
3A=A+10
2A=10
A=5
Then B=15
So:
1/A + 1/B=1/n where n is the total amount of days. So:
1/5 + 1/15=1/n
3n+n=15
n=15/4 days
Ques:- When the hr ask us tell me some thing about you then what should we include in what not plz help me by giving some examples.
Ques:- Which of the following equations has a root in common with x2 – 6x + 5 = 0?
Recent Answer : :
4
Ques:- “can we fit 8 numbers (1 to 8) in 2X4 matrix such that any element in any cell should not adjacent or diagonal to next or previous element EX: 1 2 – – –>invalid EX: 1 6 7 4–>invalid 2 – – – EX: 1 4 7 3 —>invalid- 2 – – …”
Recent Answer : :
2637
4815
OR
2817
4635
Ques:- What is the thing that can disappoint you while working for a certain employer?
Ques:- What is the relationship between economics and management?
Ques:- The ratio of the present ages of Suman and Renu is 5 : 7 respectively. Four years hence the ratio will become 3 : 4 respectively. What is the present age of Renu in years? (a) 28 (b) 24 (c) 20 (d) 21 (e) None of these
Recent Answer : :
( a ) 28
Ques:- What do you mean by customer service?
Ques:- What is your Future Plans for the Company if Permanently Employed?
Ques:- Why did u choose this career?
Ques:- ?Why your marks decreased in college?
Ques:- If two dice are thrown together, the probability of getting an even number on one die and an odd number on the other is ?
Ques:- Are u willing to relocate? in case north india and rural areas.
Ques:- What is Learning?
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Ques:- Find the odd man out:
1, 5, 14, 30, 50, 55, 91
1, 5, 14, 30, 50, 55, 91
A. 91
B. 55
C. 50
D. 5
Recent Answer : :
C. 50
Ques:- Evaluate 33.33% of 27.
Recent Answer : :
9
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.