Seville the barber has 20 human clients averaging 80 kg each, and 30 porcupine clients averaging 10 kg each. What is the average weight of one of these 50 clients?
A.
38 kg
B.
42 kg
C.
45 kg
D.
52 kg
Exam No：2020 First Round Grade 7 Year：2020 Question No：4
Answer:
A
Knowledge points:
G7 - Algebra - Advanced Statistical Measures (Algebraic Application)
Solution:
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