Answer:
D 192
Step-by-step explanation:
used: new: total
4: 1 : 5
We have 240 stamps
240/5 = 48
Multiply each number by 48
used: new: total
4*48: 1*48 : 5*48
192 : 48 : 240
There are 192 used stamps and 48 new stamps in his collections
From the research I just did, it seems that 6 lines will be drawn when constructing an inscribed square.
Hope this helped :)
1 square kilometer is equal to 100 square hectometers :)