Interested to Buy Any Domain ? << Click Here >> for more details...
three friends a,b,c run around a circular track of length
120m at a speed of 5,7,15m/sec respectively starting
simultaneously from the same point in the same
direction .how often they three will meet????
- 5 Answers
- 16516 Views
- I also Faced
- E-Mail Answers
Answer Posted / nisha
Time taken by 'a' to cover a circular track = 120/5 = 24
seconds
Time taken by 'b' to cover a circular track = 120/7 seconds
Time taken by 'c' to cover a circular track = 120/15 = 8
seconds
LCM of 24, 8, 120/7 = 120/7seconds = ~ 17 seconds
So the three friends will meet after ~17 seconds
| Is This Answer Correct ? | 6 Yes | 11 No |
Post New Answer View All Answers
Mahesh and Ramesh are questioners. The time taken by Mahesh and make a question is double of that taken by Ramesh. If Mahesh made 3/2 questions less each minute and Ramesh made 3 questions less each minute, to make m questions, the time taken by Ramesh would be 2n minutes less than that taken by Mahesh. If Ramesh takes n minutes to make m questions, find the number of questions that Ramesh can make in a minute?
Zulus always speak truth and Hutus always speak lies. There are three persons A,B&C. A met B and says " I am a Zulu or I am Hutu". We don't know what exactly he said. then B meets C and says to c that " A is a Zulu ". Then C replied " No, A is a Hutu ". How many Zulus are there ?
15 men take 21 days of 8 hrs. each to do a piece of work. How many days of 6 hrs. each would it take for 21 women if 3 women do as much work as 2 men?
If the area of a square increases by 69%, then the side of the square increased by
Two trains are travelline at equilateral .Train A is travelling in the direction of earths spin.Other train B is travelling in opposite direction of earths spin.Which trains wheels will wear first?and why?
Find the reminder when 333666777888999 divided by 3 or 9 or 11 ?
A company installed 36 punching machines at the beginning of the year.In the spring they installed 9 additional m/c's and then discontinued 18 in the fall.How many were still installed at the end of the year?
If the circumference of a circle is 100 units, Then what will the length of the arc described by an angle of 20 degree ?
No of financial emergency announced by president
Why do you want to join gnfc
Complete the given number series 240, 240, 120, 40,?, 2 ?
There are Brown and Black cows. In five days four black cows and 3 brown cows give as mush as milk that four brown cows and 5 black cows give in four days. If the black cow gives 10 litres of milk per day, how many liters of milk the Brown cow will give in one day? (Numbers are not certain)
there are 27 coins in which one is heavier than rest(all equal weight). how many measurements are needed to isolate that odd one.
In a certain college, 20% of the boys and 40% of the girls attended the annual college outing. If 35% of all the students are boys, what percent of all the employees went to the outing?
What do you think are your personal strengths and what are the areas where you need to improve as an individual?
