Math_Question_to_solve

Question

Rose walks 8/3 km in three-fifths of an hour. If her speed remains unchanged, how many kilometres can she walk in one and three quarters of an hour? Express your answer as a mixed number in lowest terms.

Answer 1

8/3 km in 3/5 hour

for 1 3/4 hours = 7/4 hour

X/(8/3) = (7/4)/(3/5) = (7/4)(5/3) = 35/12

X = (8/3)(35/12) = 280/36 = 140/18 = 70/9 km = 7 7/9 km

7/4 divided by 3/5 = 7/4 times 5/3= 35/12

35/12 times 8/3 = 35/3 times 2/3 = 70/9 = 7 7/9 km

she walked almost 3 times as long. 3 times 8/3 = 8km