User`s guide

16 — TimeCard Tabulator II
Production – Spacing
A radio advertiser wants to air 15
evenly spaced spots during the
morning hours of 6 AM – 10 AM. Find
the number of minutes between spots,
and the times for the first few spots.
KEYSTROKE DISPLAY
1. Enter end time:
10A 10:00 AM
2. Subtract start time:
–6A= 4:00 HR MIN
3. Divide by number of spots:
÷15= 0:16 HR MIN
4. Store result into memory:
s1 M-1
0:16 HR MIN
5. Enter start time of 1
st
spot:
6A 6:00 AM
6. Find start time of 2
nd
spot:
+r1= 6:16 AM
7. Find start time of 3
rd
spot:
= 6:32 AM
= 6:48 AM
Continue pressing = to solve for the
remaining spot start times.
Production – Fixed Lengths
You have a 22 minute demonstration
video which is set to automatically
repeat. If the rewinding takes another
90 seconds, how many times will the
tape replay in eight hours?