Difference between pages "1.23" and "2.33"

Latest revision as of 19:57, 10 September 2020

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-million seconds = 277.777778 hours
-million seconds = 11.5740741 days
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+Back to [[Chapter 2]]
-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)
-Another approach:
- a) There are 3600s in an hour
- b) 3600s goes into 10,000s ≈ 3 hours
- c) multiply 3 with 100 = 300 hours (since 10,000s is 100 times less than 1,000,000)
- d) 24h goes into 30h ≈ 1.2 day
- e) multiply 1.2 by 10 = 12 days (since 30h is 10 times less than 300)
-Back to [[Chapter 1]].