Since 1 cm represents 16 km
then 2 cm represents 32 km ( 2 x 16 )
and 3 cm represents 48 km ( 3 x 16 )
and 4 cm represents 64 km ( 4 x 16 )
and 5 cm represents 80 km ( 5 x 16 )
etc.
Can you take it from there? Just do the multiplication.
23.1 cm represents __________ km ( 23.1 x 16 )