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Moldova Contests
Chisinau City MO
1949-56 Chisinau City MO
20
20
Part of
1949-56 Chisinau City MO
Problems
(1)
Chisinau MO p20 1949-56 VIII-IX A-> B 50km/h , B-> A 30km/h, average
Source:
3/15/2021
From point
A
A
A
to point
B
B
B
, the car drove at a speed of
50
50
50
km / h, and from
B
B
B
to
A
A
A
, at a speed of
30
30
30
km / h. What was the average vehicle speed?
algebra