Abe drove for 2 hours at $$\(30 \mathrm{~km} / \mathrm{hr}\)$$ and for 3 hours at $$\(50 \mathrm{~km} / \mathrm{hr}\)$$. What was Abe's average speed over the 5 hours?
A.
\(35 \mathrm{~km} / \mathrm{hr}\)
B.
\(40 \mathrm{~km} / \mathrm{hr}\)
C.
\(42 \mathrm{~km} / \mathrm{hr}\)
D.
\(45 \mathrm{~km} / \mathrm{hr}\)
Exam No：2018 First Round Grade 5 Year：2018 Question No：14
Answer:
C
Knowledge points:
G5 - Data - Averages (Calculation & Application)
Solution:
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