1 (A) TPD = 500 - (50 + 65) = 385 PS; (B) TPD = 500 - 2(40) = 420 PS...

7.1 (a) t

pd

= 500 - (50 + 65) = 385 ps; (b) t

pd

= 500 - 2(40) = 420 ps; (c) t

pd

= 500 - 40 =

460 ps.