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:
1 0 A
10:00
AM
2. Subtract start time:
– 6 A =
4:00
HR MIN
3. Divide by number of spots:
÷ 1 5 =
0:16
HR MIN
4. Store result into memory:
s 1
M-1
0:16
HR MIN
5. Enter start time of 1
st
spot:
6 A
6:00
AM
6. Find start time of 2
nd
spot:
+ r 1 =
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?
