An office is charlie and the speed of 10 1/5 miles per hour how long will it take to object to travel 1 4/5 miles

(10 1/5) / 1 = (1 4/5) / x...10 1/5 miles to 1 hr = 1 4/5 miles to x hrs
cross multiply...
(10 1/5)(x) = (1 4/5)(1)
51/5x = 9/5
x = (9/5) / (51/5)
x = 9/5 * 5/51
x = 9/51 which reduces to 3/17 hrs <== 

Hey mate here is the answerthe correct answer is b may it will you