Grade 6 Math Word Problems with Answers - onlinemath4all Grade 6 Math Word Problems with Answers. GRADE 6 MATH WORD PROBLEMS WITH ANSWERS. Problem 1 : A train travels 18 km/hr. How many meters will it travel in 12 minutes. (A) 3600 (B) 4200 (C) 5100. Answer : Speed of the train = 18 km/hr ... Linear Inequalities Word Problems Worksheet.