# time

1. ### What is the Distance in Meeting for first time for opposite direction?

I able to calculate this 2 things: relative speed of A and B = 3 + 1; 4m/sec Time for meeting for first time in opposite direction = 100/(3+1); 25 sec I can't able to find distance in Meeting for first time for opposite direction.
2. ### How can I find the time for the least possible distance between two cars?

The problem is as follows: Two volkswagen possesses constant velocities and pass through the position labeled $A$ on the instant indicated in the figure from below. Find the time which will take the cars to be separated by a minimum distance. The alternatives given on my book are as...

8. ### Questions That Could Make You Waste Your Time

The ACT had an inequality where the answers were number lines. The fifth and final choice was a blank line with the words "empty set." That was the correct answer because the inequality had absolute value < or = -1, so working with x in the absolute value was a waste of time.
9. ### Analysis of Time Domain signal

Hello guys, for the last 27 years I ran my own business collecting and analysing vibration data from production machinery. If you want to understand more, you could look at my website - just google efftek and steve ferry, that's me and my company. I am now (sort of) retired to Cyprus but when...
10. ### Demolition in Time & Work problem.

A can build a wall in 6 hours, while B can demolish the same wall in 10 hours. In how many hours would A be able to build the wall if they work on alternate hours?? My attempt: total work 30 units A's efficiency = 5 B efficiency = - 3 -------------------------------------- Combining...
11. ### What is the use of finding time ratio in this problem?

Dipak goes to his office, covering half of the distance by auto & rest by metro; total time taken by him to cover complete distance is 50 min. If he covers complete distance by metro, it would take 35 mins to reach the office. On a particular day, he goes to his office & returns by auto; find...
12. ### how much time Y take to do it alone?

X does half of work that Y does in 1/6 of the time. They take 10 days to complete a work together, how much time Y take to do it alone? Solution: x/y = 2/6 = 1/3 3/4 = 10 3 = 40 Please explain this tiny solution. How are 2/6 & 3/4 obtained?
13. ### Acceleration in terms of time

Can anyone help? Find s(t)\; if a(t)=\frac{5}{(1+t)^2 }, \; \; t\in [0,10]. Answer in the pdf is s(t)=5t-5\ln(t+1)+10. (using a=vâ€™=sâ€™â€™) v(t)=\int a(t) dt =c_1 - \frac{5}{t+1} , how to find c_1 ? Pdf says v(0)=0 then c_1=5. s(t)=\int v(t) dt =5t-5\ln(t+1) + c_2 \; , how to find...
14. ### How to solve this time & work problem?

24 men can complete a work in 16 days. 32 women can complete the same work in 24 days. 16 men & 16 women started working and worked for 12 days. How many more men are to be added to complete the remaining work in 2 days? Sol: 24m â†’ 16 32w â†’ 24 24m*16 = 32w*24 1m=2w Total work...
15. ### Probability of living at a certain time

The human populatio is growing exponentially. An example of the human population could be: Year 1800: population 1.75 billion Year 1900: population 3.5 billion [1.75 * 2] Year 2000: population 6 billion [1.75 * 2 * 2] The question is: Given any person which year is that person more...
16. ### A geometry time question

If a rescue craft is launched from Miami and can travel with a maximum speed of 35 knots, how long should it take to reach the crash site? Note: 1 knot = 1.852 km/hr. The approximate distance in this region for latitude of 1Â° = 111 km and longitude 1Â° = 100 km. Let's suppose the coordinates...
17. ### Can some one tell me about a time in math

When a new method more logical and simpler of accomplishing a set goal or task was created when once thought that the best way had been figured.....setting the bar at a pretty much giving the new standard an unsurpassable level. Or if one so wanted to corner said market or metaphorically hold...
18. ### Total time problem

First worker capacity alone to do the work : 12 hours Second worker capacity alone to do the work : 6 hours They start working together for 3 hours and then the second worker continues to work alone . How much time the second worker did work ?
19. ### How do I find the time of a scheduled event if it is given between a range?

I'm going in circles with this riddle. It doesn't appear too complicated but I got tangled with the *right* interpretation of the *time* mentioned. The problem is as follows: At a TV station a program director decides to set a new schedule for the morning news show. He decides that the show is...
20. ### Probability of two buyers service time

I have a geometric probability question and I don't know how exactly it should be solved and how graph should look like. The question is: The problem is that I don't know how to draw graph for this question. Thanks for any help you could give me!