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
- 14782 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
if a,b>0 and a+b=2 then the max value of ab is
Technical questions
Wind flows 160 miles in 330 min, for travelling 80 miles how much time does it require?
There are some 20 Basketball players & 30 Football players, and 25 cricket players. 1 of them plays all the three games. 8 of them plays at least two games. They are 50 altogether. How many of them plays none of the games.
Sita bought a handbag for Rs. 144 and got a percentage of profit equal to the cost price of the handbag. What is the cost price of the handbag?
How many liters of water must be added to 30 liters of alcohol to make a solution that is 25%
What is the maximum number of half-pint bottles of cream that can be filled with a 4-gallon can of cream(2 pt.=1 qt. and 4 qt.=1 gal)
The mean and the variance of a binomial distribution are 4 and 2 respectively. Then the probability of 2 successes is?
Find the Series number: 0,2,3,5,8,10,15,17,24,26,..
a cylinder ingot 6cms in diameter and 6 cms in height is and spheres all of the samesize are made from the material obtained.what is the diameter of each sphere?
k, l are men who take home a salary of x, y respectively.the total amount taken home is
If the product of three consecutive int is 210,then sum of the two smaller ints is:
(1/2) of a number is 3 times more than the (1/6) of the same number?
Fallin height is proportional to square of the time. One object falls 64 cm in 2 sec. than in 6 sec. from how much height the object will fall?
A batsman outs for 23 runs in one inning, which increases his average 15 to 16. If he has to get 18 as average, what score is to make by him in the same innings?
