four methods of completing tax returns and the time taken to by each method are: with a pc, 1 hour;...

four methods of completing tax returns and the time taken to by each method are: with a pc, 1 hour; with a pocket calculator, 12 hours; with a pencil and paper, 16 hour. the pc and its software cost $1,000. the pocket calculator cost $10, and the pencil and paper cost $1.

a. Which if any of the methods is technologically efficient

b. which method is economically efficient if the wage rate is:
(i) $5 an hour
(ii)$10 an hour
(iii) 500 an hour