Iam greater than 3 hundreds, 2tens, and 2 ones. i am less than 3 hundreds, 2tens, 4ones. what number am i?

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.