[" were slower by "10km/h" ,"k" the train."],[" the distance covered by the train."],[" the students of a class are made to stand in rows.If "3" students a "],[" The students of a class are madents are less in a row,there would be "],[" would be "1" row less.If "3" students are less in a row,there would be "],[" would be "1" row less.If "3" students are less in a row,there would be "],[" would be "1" row less.If "3" students are less in "],[" number of students in the class."],[" Amber of students in the class."]