Aturtle walking at an average speed of 3/10 mile per hour takes 13/20 hour from its home how long will take if the turtle doubles its average speed

If you double the average it'll be 6/10. 3/10mi usually for 13/20hrs till home arrival. double the average and divide the hours by 2. so it'll take 6.5 hours for the turtle to get home. or 6 hours and 30 minutes.

Bis your answer. it only holds the decimal numerals