Question

The number 45 D/10 is recorded on the top right 10 of a topographical map, 

i. What do the factors ‘45 ’ and ‘D ’ indicate. 

ii. What is the scale of this toposheet? 

a. A 200 

b. BM 220 

c. 240

Answer 1

i. 

• 45 indicates million sheet. 
• D indicates degree sheet. 

ii. Scale = 1 : 50000