SOLUTION: A space station has 3 robots that make repairs.
The Marp robot can make 12 repairs in 10 minutes.
The Orti robot can make 10 repairs in 8 minutes.
The Eddi robot can make 8 repa
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Question 962396: A space station has 3 robots that make repairs.
The Marp robot can make 12 repairs in 10 minutes.
The Orti robot can make 10 repairs in 8 minutes.
The Eddi robot can make 8 repairs in 6 minutes.
The space station needs 100 repairs.
Approx. how long will it take the 3 robots working together to complete 100 repairs?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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Marp=12 repairs/10 minutes=1.2 repairs/min
Orti=10 repairs/8 minutes=0.8 repairs/min
Eddi=8 repairs/6 minutes=1.33 repairs/min
All three together=1.2 repairs/min+0.8 repairs/min+1.33 repairs/min=3.33 repairs/min
For 100 repairs: (100 repairs)/(3.33 repairs/minute)=30 minutes
ANSWER: It would take the three working together 30 minutes to make 100 repairs.
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