Learn to Program, 2nd Edition

Exercises from Chapter 2

Hours in a Year

How you could do it:

puts 24*365

8760

How I would do it:

#  depends on if it's a leap year
puts 24*365
puts "(or #{24*366} on occasion)"

8760
(or 8784 on occasion)

Minutes in a Decade

How you could do it:

puts 60*24*(365*10 + 2)

5258880

How I would do it:

#  depends on how many leap years in that decade
puts "#{60*24*(365*10 + 2)} or #{60*24*(365*10 + 3)}"

5258880 or 5260320

Your Age in Seconds

How you could do it:

puts 60*60*24*365*36

1135296000

How I would do it:

puts(Time.new - Time.gm(1976, 8, 3, 13, 31))

1204369530.403

Our Dear Author’s Age

How you could do it:

puts 1160000000/(60*60*24*365)

36

And that’s pretty much how I would do it, too. ☺