Two station astronauts will each perform three 8-hour EVAs within 13 days to repair a damaged solar panel that was impacted by a micrometeoroid on the space station. What is the total amount of oxygen needed by the two astronauts to accomplish this? Please put your answer in kg units.

Background information: Each EMU contains 0.54 kilograms of oxygen and has oxygen tanks (similar to scuba diving tanks) that work with a carbon dioxide removal system to allow one 6-hour to 8.5-hour spacewalk. Without the ability to remove carbon dioxide, the oxygen in the tanks would run out more quickly, because much would be tied up in exhaled gas. The amount of oxygen consumed, and carbon dioxide produced by a crewmember is dependent on his/her metabolic rate, so each tank can not be used for more than one EVA.

3 answers

24hrs/(6hrs/tank)=4 tanks=4(.54kg)
Wow @bobpursley

6 EVAs total (3 for each crew member, of which there are 2)

1 tank can only be used for one EVA

therefore 6 tanks needed.

I will leave the rest up to you because I know VASTS would disapprove of this.
VASTS will disapprove of a person asking for help, when they are not in anyway giving examples. How nice of you. The question asked amount of oxygen not amount of tanks. Thank you for answering but i had already solved the question before placing d question.
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