Emma counted up from 0 by 1 s every second for 6 minutes, and then down by 1 s every second for 2 minutes. What number did she end on?
A.
120
B.
240
C.
360
D.
480
Exam No：2021 First Round Grade 6 Year：2021 Question No：13
Answer:
B
Knowledge points:
G6 - Arithmetic - Rate, Speed, & Time Problems
Solution:
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