A train passes through a station every 20 minute. the first train each day passes through at 6 am and the last train passes through 10:40 PM?

Science & Mathematics by Anonymous 2018-07-22 14:01:31

Social Science

7 answers

how many trains pass through the station in 1 day? i got 51 trains but the answer key says 50? just need another confirmation. ..

Anonymous

Number of 20 minutes between 6 am and 10:40 pm: 50 Number of trains passing through the station is 51.
Anonymous

22.67-06.00 = 16.67 hours Trains = 3*16.67+1 = 51
Anonymous

21 from 6 AM to 12:40 PM and 30 more from 1 PM to 10:40 PM. 51 is correct based on what you said. Make sure you read the question correctly.
Anonymous

Three trains pass through beginning each hour: 6 a.m., 6:20 a.m., 6:40 a.m. 7 a.m., 7:20 a.m., 7:40 p.m. and so on. Number of hours from 6 a.m. to 10 p.m. = 17 3 trains * 17 hours = 51 trains
Anonymous

51 is correct
Anonymous

It's the old end points problem. you need to build a 100 feet fence with posts every 10 feet. How many posts? The answer is NOT 100/10 = 10, the answer is 11.
Anonymous

There will be a train at the hour, twenty after, and forty after, each hour. The answer will be divisible by three. Seventeen hours, so 51is correct.