Suzy spent 6 7/8 days working on her english paper, 3 1/6 days doing her science project, and 1 1/2 days studying for her math test. how many days more did suzy spend on her english paper and math test than on her science project?

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.