Question

3 men are walking along with 3 circular path which are concentric, and with the same speed of the perimeters of circles are 20 m, 30 m and 40 m. the if their starting point are on the same line, the the distance travelled by each of them, when we all they again reached together at the line of starting point​

Answer 1

Answer:

120 m

Step-by-step explanation:

To find the Distance traveled by them  when they should meet all together at start point

we need to find LCM of 20 , 30 & 40

20 = 2 * 2 * 5

30 = 2 * 3 * 5

40 = 2 * 2 * 2 * 5

LCM = 2 * 2 * 2 * 3 *5 = 120 m

After Travelling 120 m They will meet together

Person running in 20 m perimeter will complete  120/20 = 6 Laps

Person running in 30 m perimeter will complete  120/20 = 4 Laps

Person running in 40 m perimeter will complete  120/20 = 3 Laps