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Uranium is present in seawater at a concentration of 3 parts per billi
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06 Apr 2022, 02:30
06 Apr 2022, 02:30
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Question Stats:
41% (01:52) correct
58% (01:44) wrong based on 62 sessions
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Uranium is present in seawater at a concentration of 3 parts per billion. If a process is available to extract this uranium, how many kilograms of seawater would need to be processed in order to obtain 50 kilograms of uranium?
Round your answer to two significant digits.
Indicate all that apply
17 million kilograms
150 million kilograms
17 billion kilograms
150 billion kilograms
17 trillion kilograms
Round your answer to two significant digits.
Indicate all that apply
17 million kilograms
150 million kilograms
17 billion kilograms
150 billion kilograms
17 trillion kilograms
Part of the project: GRE Quantitative Reasoning Daily Challenge - (2022) EDITION
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GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
GRE Math Essentials for a TOP Quant Score - Q170!!! (2021)
GRE Geometry Formulas for a Q170
GRE - Math Book
Re: Uranium is present in seawater at a concentration of 3 parts per billi
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06 Apr 2022, 10:03
06 Apr 2022, 10:03
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1 percent means 1 in 100, similarly 1 part per billion (bn) means 1 in 1 bn
given 3 part in 1 bn, since everything is in kilogram, the question stem means 3 kg Ur was present in 1 bn kg of seawater,
50 kg will be in ...cal
3 1 bn
50 x bn
cross multiply 3x=50 x= 16.66666....round to 17
given 3 part in 1 bn, since everything is in kilogram, the question stem means 3 kg Ur was present in 1 bn kg of seawater,
50 kg will be in ...cal
3 1 bn
50 x bn
cross multiply 3x=50 x= 16.66666....round to 17
Re: Uranium is present in seawater at a concentration of 3 parts per billi
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06 Apr 2022, 12:00
06 Apr 2022, 12:00
1
3 part per 1 B
50/3 part per 16.666 B
Option C is closest and correct choice
50/3 part per 16.666 B
Option C is closest and correct choice
