Answer: 
Step-by-step explanation:
Given
The yellow line leaves the station every 6 min
The red line leaves the station every 8 min
They both leave at 
Both trains meet again after, LCM(6,8)=24 min
i.e. at

Answer:
In the pictures below
Step-by-step explanation:
Answer:
3
Step-by-step explanation:
If the wire is in a square and all the sides are 5 inches when you unfold the wire it will be 20 inches long so if the length of the wire ina regtangle is 7 then the width is 3
10 cm because there are 10 mm in 1 cm so 38.5 mm = 3 cm and that is not larger than 10 cm