Mathematics, 09.03.2021 18:10 Winechou
Three friends are travelling by aeroplane and want to pay as little as possible in total for their luggage.
The airline rules are:
Every passenger may carry 10 kg of luggage for free.
Every extra 1 kg above this costs $5.
The maximum amount of luggage any one passenger may carry is 20 kg.
In total, the three friends are carrying four items weighing 6 kg, 7 kg, 9 kg and 12 kg. item of luggage. What is the least total cost for their luggage?
A $20 B $25 C $30 D $35
Anyone may
carry any
Answers: 2
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Three friends are travelling by aeroplane and want to pay as little as possible in total for their l...
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