What is the representative fraction of the kilometer scale if 20 miles is represented as 5 cm and maximum length to be measured is 5 km? (1 mile = 1.609 km)

What is the representative fraction of the kilometer scale if 20 miles

1.	What is the representative fraction of the kilometer scale if 20 miles is represented as 5 cm and maximum length to be measured is 5 km? (1 mile = 1.609 km)
A.	1:4
B.	1:643600
C.	1:1.287
D.	0.7768:1
Answer» C. 1:1.287