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1930's 6th grade math

Old 04-03-2020, 08:09 AM
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Smile 1930's 6th grade math

This problem came out of a book used in the 6th grade of a small town in Maine in the early 1930's. Can your 6 th grader solve it with pencil and paper?

if an automobile runs3/4 of a mile in 4/5 of a minute, what is the rate per hour?
Old 04-03-2020, 08:16 AM
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Yes
Old 04-03-2020, 08:21 AM
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A little but not alot
Old 04-03-2020, 08:24 AM
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my gauge cluster does not have rate per hour so i dont know!
Old 04-03-2020, 08:26 AM
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Mass aside, can they determine the formulas needed to solve it
Old 04-03-2020, 08:27 AM
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56 mph
Old 04-03-2020, 08:42 AM
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Readypro1 or his kid are close but flunk Main 6 th grade math.
Old 04-03-2020, 08:45 AM
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And English....
Old 04-03-2020, 08:48 AM
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45 According to my computations with a pencil.. But I was in 6th grade in the the 60's. Your answer may vary.
FWIW, the pencil method sucks, had to try it.
Old 04-03-2020, 08:50 AM
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54mph
Old 04-03-2020, 08:50 AM
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56.25 mph
3/4 of a mile in 4/5 of a minute
.75 miles in 48 seconds
1 mile in 64 seconds
56.25 miles in 3600 seconds (one hour)
Old 04-03-2020, 08:51 AM
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56.25
Old 04-03-2020, 08:52 AM
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54 mph
Old 04-03-2020, 08:54 AM
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15/16th of a mile per minute. x60min/hr gets 56.25mph.

I was paging through some differential equation textbooks from the 1950's. That stuff was hard core compared to the same stuff I took in the 80's. Back then you did not pass a math class unless you knew your sh!t!!
Old 04-03-2020, 08:55 AM
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But.........what is the "common core" answer?
Old 04-03-2020, 08:56 AM
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C
Old 04-03-2020, 09:02 AM
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Originally Posted by Jus Teasin View Post
But.........what is the "common core" answer?

What does the driver identify as?
Old 04-03-2020, 09:08 AM
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My hunch is that they were testing fractions, so:

(3/4)/(4/5)*60
or (3/4)(5/4)*60
or 15 * 60/4
or 15*15/4
or 225/4
or 112.5 / 2
or 56 & 1/2

That would be how I would do it quickest
Old 04-03-2020, 09:17 AM
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Originally Posted by ericinmich View Post
My hunch is that they were testing fractions, so:

(3/4)/(4/5)*60
or (3/4)(5/4)*60
or 15 * 60/4
or 15*15/4
or 225/4
or 112.5 / 2
or 56 & 1/2

That would be how I would do it quickest
better take a second look
Old 04-03-2020, 09:19 AM
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Was this vehicle on a treadmill?

I also got 56.25mph

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