# TADM2E 1.21

From Algorithm Wiki

1 million seconds = 277.777778 hours

1 million seconds = 11.5740741 days

Possible approach:

a) There are 3600s in an hour b) Eliminating the thousands, we get 1000 / 3.6 c) 3.6 is about half-way between 3 and 4, thus the result is about (1000/3 + 1000/4)/2 ≈ (333+250) = 583/2 ≈ 290 d) About 12 days (240 + 48)