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# A certain snail can travel at a rate of 1 millimeter per second. A

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EMBA Programs Moderator
Joined: 03 Apr 2019
Posts: 34
Location: United States (CA)
GPA: 3.75
A certain snail can travel at a rate of 1 millimeter per second. A  [#permalink]

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Updated on: 07 Oct 2019, 09:21
1
Project IR Butler 2019-20 - Get one IR Question Everyday
Question # 06, Date : 06-Oct-2019
This post is a part of Project IR Butler 2019-20. Click here for Details

A certain snail can travel at a rate of 1 millimeter per second. A children's storybook author wants to convert this rate to other units to make the description more appealing to children.

Based on the given information, select for m/day the closest to the equivalent speed of the snail in meters per day and select for km/wk the closest to the equivalent speed of the snail in kilometers per week. Note that 1 meter = 1,000 millimeters and 1 kilometer = 1,000 meters.

Make only two selections, one in each column.

m/day-----------km/wk
0.6------------------0.6
4.2------------------4.2
29.4-----------------29.4
86.4-----------------86.4
604.2----------------604.2

Originally posted by carbazzy on 07 Aug 2019, 13:06.
Last edited by SajjadAhmad on 07 Oct 2019, 09:21, edited 8 times in total.
Updated - Complete topic (17).
Math Expert
Joined: 02 Aug 2009
Posts: 8626
Re: A certain snail can travel at a rate of 1 millimeter per second. A  [#permalink]

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17 Sep 2019, 07:16
1
carbazzy,
The way would be ...

the speed is 1mm/sec....
First convert sec in to day..
There are 24 hrs, and each hr has 60 minutes, which in turn have 60 secs each..
so number of secs in a day = 24*60*60=86400 secs..

So 1mm/sec = 1*86400mm per 86400secs = 86400mm per day ..
Now 1000mm = 1 m, so $$86400mm = \frac{86400}{1000}m=86.4m$$
Thus 86400mm/day=86.4m/day

Similarly you can find km per week...
Now there are 7 days in a week, so 86.4m/day = 86.4*7/7day=604.8m/week..
Convert m into km = (604.8/1000)/week=0.6048km/week
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Re: A certain snail can travel at a rate of 1 millimeter per second. A   [#permalink] 17 Sep 2019, 07:16