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At the rate of f floors per m minutes, how many floors does an elevato
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09 Aug 2021, 02:45
09 Aug 2021, 02:45
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Question Stats:
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8% (01:53) wrong based on 24 sessions
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At the rate of f floors per m minutes, how many floors does an elevator travel in s seconds?
A. \(\frac{fs}{60m}\)
B. \(\frac{ms}{60f}\)
C. \(\frac{fm}{s}\)
D. \(\frac{fs}{m}
\)
E. \(\frac{60s}{fm}\)
Kudos for the right answer and explanation
Question part of the project GRE Quant/Math Extreme Challenge Daily (2021) Edition
GRE - Math Book
A. \(\frac{fs}{60m}\)
B. \(\frac{ms}{60f}\)
C. \(\frac{fm}{s}\)
D. \(\frac{fs}{m}
\)
E. \(\frac{60s}{fm}\)
Kudos for the right answer and explanation
Question part of the project GRE Quant/Math Extreme Challenge Daily (2021) Edition
GRE - Math Book
At the rate of f floors per m minutes, how many floors does an elevato
[#permalink]
09 Aug 2021, 03:01
09 Aug 2021, 03:01
1
Solution:
Speed= f
As we are given time in seconds we have to convert either one of them i.e. second to minutes or minutes to seconds and thus in order to convert seconds to minutes we divide the value with 60m, m indicating the total minutes
Time= \(\frac{s}{{60m}}\)
Distance =speed x time
=f x \(\frac{s}{{60m}}\)=\(\frac{fs}{{60m}}\)
This can also be solved by substituting the values into each option choices, but this knowing the concepts saves the time required to calculate the values of individual choices.
IMO A
Hope this helps
Speed= f
As we are given time in seconds we have to convert either one of them i.e. second to minutes or minutes to seconds and thus in order to convert seconds to minutes we divide the value with 60m, m indicating the total minutes
Time= \(\frac{s}{{60m}}\)
Distance =speed x time
=f x \(\frac{s}{{60m}}\)=\(\frac{fs}{{60m}}\)
This can also be solved by substituting the values into each option choices, but this knowing the concepts saves the time required to calculate the values of individual choices.
IMO A
Hope this helps
gmatclubot
At the rate of f floors per m minutes, how many floors does an elevato [#permalink]
09 Aug 2021, 03:01
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