Tuesday

March 31, 2015

March 31, 2015

Posted by **Najmah** on Tuesday, February 19, 2013 at 3:46pm.

An "A" train leaves a subway station every 13 minutes. An "E" train leaves evry 9 minutes. If both trains just left the station on parallel tracts, when will both leave the station together again?

- Math 6th grade -
**Steve**, Tuesday, February 19, 2013 at 3:50pmSince LCM(9,13) = 9*13 = 117

After 117 minutes,

9 A trains will have left,

13 E trains will have left

and then the cycle starts over.

Trains run on tracks, not tracts.

- Math 6th grade -
**ashley**, Tuesday, February 19, 2013 at 7:03pm117minutes

- Math 6th grade -
**Alissson**, Tuesday, February 19, 2013 at 9:56pmSince LCM(9,13) = 9*13 = 117

After 117 minutes,

9 A trains will have left,

13 E trains will have left

and then the cycle starts over.

Trains run on tracks, not tracts. ~Alisson~

**Answer this Question**

**Related Questions**

Math - An “A” train leaves a subway station every 12 minutes. An “E” train ...

math - At the "Neverlate" railroad station there are two tracks, A and B, both ...

pre algebra - train A leaves a station at 1:15 PM,traveling 60 mph.Train B ...

8th grade math PLEASE HELP! - At Eglinton subway station the 54 Lawrence bus ...

Math - Two trains are travelling on parallel tracks both going from station A to...

physics - An express subway train passes through an underground station. It ...

physics - An express subway train passes through an underground station. It ...

college physics - An express subway train passes through an underground station...

Math - At Eglinton subway station the 54 Lawrence bus leaves the station every ...

4th grade - trains begin to stop at terminal b every morning at 5 a.m. and then ...