I can politely answer your queation if you could add an attachment of the graph.
Answer:
Step-by-step explanation:
77
Actual Distance =120 Km
We have to map 120 Km in the scale of 3 Cm.
i.e, 3 Cm = 120 Km
→ 1 cm = (120÷3) Km
→ 1 cm = 40 Km
So, if you scale 3 cm on the map correspond to 120 km,then
you have to scale , 1 Cm= 40 Km
Drawn the graph for you below.
268.082573106329. Hope this helps. Tell me if this is correct.