Mathematics
NULL
Medium
Question
Paper is 30 cm by 15 cm with margins 2.5 cm top and bottom and 1.25 cm on each side. About what percent is left for typing?
A
0.65
B
0.7
✓ Official correct answer
C
0.8
D
0.6
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
0.65
No member explanations yet for this option.
B
0.7
No member explanations yet for this option.
C
0.8
No member explanations yet for this option.
D
0.6
No member explanations yet for this option.
Explanation
Usable area 312.5 / 450 ≈ 70% (option 0.7).