Question

You can use this graph to convert between

miles and kilometres.
80
-od
70
60
a) Change 30 miles to kilometres.
50
1 kilometres (1)
Kilometres
40
b) Change 100 kilometres to miles.
20
miles (2)
10
0
0
10 20 30
Miles
40 50
Total marks: 3

Answer 1

A. 48 Km.

B. 62.5 miles.

Explanation:

From the diagram given above, the following data were obtained:

50 miles = 80 Km

A. Converting 30 miles to kilometres.

50 miles = 80 Km

Therefore,

30 miles = 30 miles × 80 Km / 50 miles

30 miles = 48 Km

Thus, 30 miles is equivalent to 48 Km.

B. Converting 100 km to miles.

80 Km = 50 miles

Therefore,

100 Km = 100 Km × 50 miles / 80 Km

100 Km = 62.5 miles

Thus, 100 Km is equivalent to 62.5 miles.