The bear average speed was 4km/hr
Total distance travelled= 1+1+1=3km
Total time taken=45 min
=45/60 hours
=3/4 hours
Average speed=Distance/time
=3÷3/4
3×4/3
=4km/hr
so,the bear average speed was 4km/hr
learn more about speed from here: https//brainly.com/question/28231763
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