Jan hiked half of a $$\(36-\mathrm{km}\)$$ long trail in 3 hrs . Her average speed was
A.
\(6 \mathrm{~km} / \mathrm{hr}\).
B.
\(9 \mathrm{~km} / \mathrm{hr}\).
C.
\(12 \mathrm{~km} / \mathrm{hr}\).
D.
\(18 \mathrm{~km} / \mathrm{hr}\).
Exam No：2022 First Round Grade 7 Year：2022 Question No：6
Answer:
A
Knowledge points:
G7 - Algebra - Rate Problems (Distance-Rate-Time)
Solution:
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