Ques:- Two trains of equal length when moving in opposite direction takes 5 sec. to cross each other completely and when moving in same direction takes 15 sec. Find the ratio of their speed.
Ques:- A man engaged a servant on the condition that he would pay him Rs.900 and a uniform after one year service. He served only for 9 months and received uniform and Rs.650, find the price of the uniform?
Recent Answer : :
12 month=>900Rs+Uniform
1month:75 => 9month:675
675-650=25 =>price of Uniform
Ques:- A tradesman by means of his false balance defrauds to the extent of 20%? in buying goods as well as by selling the goods. What percent does he gain on his outlay?
Recent Answer : :
34
Ques:- What is the difference between smart work and hard work?
Ques:- About qualification and personal about family.
Ques:- Lethargic : Vital :: Trite : ?
A. Unique
B. Slug
C. Lazy
D. Skinny
Recent Answer : :
A
Ques:- If I walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late. Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks.
Ques:- A can do a work in 15 days and B in 20 days. If they work on it together for 4 days, then the fraction of the work that is left is?
Recent Answer : :
8/15 left.
1/15 * 4 + 1/20 * 4 = 7/15
1 – 7/15 = 8/15
Ques:- Are you lived at Delhi?
Ques:- The LCM of two numbers is 24. The GCF is 4. One number is 4 more than the other. What are the numbers.
Recent Answer : :
24*4= x(x+4)
solve this
answer is x=8
X+4= 12
Ques:- Where did you find this job?
Ques:- TELL ME THE STORY OF THE LAST MOVIE U SAW?
Ques:- A train running at the speed of 60 km/hr crosses a pole in 9 seconds. Find the length of the train?
Recent Answer : :
Time =9 seconds
Speed =(60×518) m/sec=(503)m/sec
∴ Speed =DistanceTime
Length of the train (Distance) = (Speed × Time) = (503×9) m=150 m.
Ques:- Tell me about your self and past job
Ques:- Select the decimal value of arithmetic shift right by 2 operation on a signed integer -102. -57 +39 -39 +57
Recent Answer : :
it is based on the right shift operation on the perticular digit
Ques:- 5 * 5 ÷ 5 + 5 ÷ 5 = ?
Ques:- If the height of a cone is increased by 100% then it’s volume is increased by?
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 : :
4
Ques:- A die is rolled several times and the number appearing is summed. We stop when this sum becomes greater than or equal to 100. What value of sum in the end is the most probable (out of 100, 101, 102, 103, 104, 105)
Ques:- How are you helping your subordinates develop themselves?
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Ques:- An amount of money is to be divided between P, Q and R in the ratio of 3:7:12. If the difference between the shares of P and Q is Rs.2400, what will be the difference between Q and R’s share?
Recent Answer : :
3000
Ques:- The length of a rectangle is increased by 25% and its breadth is decreased by 20%. What is the effect on its area?
Ques:- A starts business with a capital of Rs.1200 B and C join with some investments after 3 and 6 months respectively. If the end of a year, the profit is divided in the ratio 2:3:5 respectively. What is B’s investment in the business?
Ques:- Information regarding family members
Ques:- A seller has a set of apples out of which he sells one half of it and half an apple to his first customer.then he sells half of the remaining apples and a half apple to his second customer.Then he sells half of the remaining apple and ? apple to his third customer and so on.This repeats upto 7th customer and no more apples are remaining . Find the total no of apples he had.
Recent Answer : :
I think U r wrong Tina,because
according to u,
1st customer=43 apples
2nd customer=21.5 apples
An apple cannot be cut
I think the answer is 127 check it out…
Ques:- TELL ME SOMETHING ABOUT UR SELF.
Ques:- If PQRST is a parallelogram what it the ratio of triangle PQS & parallelogram PQRST
Recent Answer : :
1:2
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Ques:- A certain number of men can finish a piece of work in 10 days. If however there were 10 men less it will take 10 days more for the work to be finished. How many men were there originally?(a) 110 men(b) 130 men(c) 100 men(d) none of these
Recent Answer : :
none of these
there will be 20 men
Let’s assume the length of each train is ‘L’ and the speeds of the two trains are ‘V₁’ and ‘V₂’ respectively.
When the trains are moving in the opposite direction, their relative speed is the sum of their individual speeds. The total distance they need to cover is the sum of their lengths. Since they cross each other completely in 5 seconds, we can set up the following equation:
(V₁ + V₂) × 5 = 2L
When the trains are moving in the same direction, their relative speed is the difference between their individual speeds. The total distance they need to cover is the difference between their lengths. Since they cross each other completely in 15 seconds, we can set up the following equation:
(V₁ – V₂) × 15 = 2L
Now, let’s solve these equations to find the ratio of their speeds.
From the first equation, we have:
(V₁ + V₂) × 5 = 2L
V₁ + V₂ = (2L) / 5
From the second equation, we have:
(V₁ – V₂) × 15 = 2L
V₁ – V₂ = (2L) / 15
Let’s add these two equations together:
V₁ + V₂ + V₁ – V₂ = (2L) / 5 + (2L) / 15
2V₁ = (6L + 2L) / 15
2V₁ = (8L) / 15
V₁ = (4L) / 15
So, the speed of the first train is (4L) / 15.
Now, let’s substitute this value back into the first equation to find V₂:
(4L) / 15 + V₂ = (2L) / 5
V₂ = (2L) / 5 – (4L) / 15
V₂ = (6L – 4L) / 15
V₂ = (2L) / 15
Therefore, the speed of the second train is (2L) / 15.
The ratio of their speeds is given by:
(V₁ / V₂) = ((4L) / 15) / ((2L) / 15)
(V₁ / V₂) = 4L / 2L
(V₁ / V₂) = 2
So, the ratio of their speeds is 2:1.