Sample Solutions for Page Calculations
Out of 2 marks: 1 for part (a), 1 for part (b)
Version 1: 62 bytes, 20,000 pages Solution:
a) floor (4096 bytes/page / 62 bytes/record) = 66 rec/page (deduct 0.5 if they wrote 67 or 66.1)
b) ceiling(20000 rec / 66 rec/page) = 304 pages (deduct 0.5 if they wrote 303)
It is OK for the students to use the result of (a) in their calculation, but again, check that (b) includes the ceiling.
Version 2: 56 bytes, 22,000 pages Solution:
a) floor (4096 bytes/page / 56 bytes/record) = 73 rec/page (deduct 0.5 if they wrote 74 or 73.1)
b) ceiling(22000 rec / 73 rec/page) = 302 pages (deduct 0.5 if they wrote 301 or 301.4)
It is OK for the students to use the result of (a) in their calculation, but again, check that (b) includes the ceiling.
Version 3: 66 bytes, 30,000 pages Solution:
a) floor (4096 bytes/page / 66 bytes/record) = 62 rec/page (deduct 0.5 if they wrote 63 or 62.1)
b) ceiling(30000 rec / 62 rec/page) = 484 pages (deduct 0.5 if they wrote 483 or 483.9)
It is OK for the students to use the result of (a) in their calculation, but again, check that (b) includes the ceiling.