Question

There is one railway on the island of Monday, which runs from Tuesday to Wednesday. There are two intermediate stops at Thursday and Friday. The trains run continuously from one end to the other at a constant speed, stopping for three minutes at each station. From departing Tuesday to arriving at Wednesday takes 42 minutes. From Tuesday to Friday takes 24 minutes. From Thursday to Wednesday takes 36 minutes. How long does it take from Thursday to Friday?

Answer 1

According to the calculations that have been made, it takes 18 minutes to get from Thursday to Friday.

Since from departing Tuesday to arriving at Wednesday the railway takes 42 minutes, while from Tuesday to Friday takes 24 minutes, and from Thursday to Wednesday takes 36 minutes, to determine how long does it take from Thursday to Friday the following calculation has to be done:

• 1 station = Tuesday
• 2 station = Thursday
• 3 season = Friday
• 4 station = Wednesday

• Station 1 to 4 = 42 minutes
• Station 1 to 3 = 24 minutes
• Station 2 to 4 = 36 minutes
• Station 2 to 3 = ???

• Station 1 to 2 = 42 - 36 = 6 minutes
• Station 2 to 3 = 24 minutes - 6 minutes = 18 minutes

Therefore, it takes 18 minutes to get  from Thursday to Friday.

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