Question

Help me on both questions as attached below.

Also it's workings on how to get that if possible
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Answer 1

a) 160km

b) it will take 3.2 hours or 192 minutes or 3 hours and 12 minutes

Explanation:

a) d=speedxtime

so, 64x2. 5=160km

b) time=d/s

so, 160/50

it will take 3.2 hours or 192 minutes or 3 hours and 12 minutes