Answer:
D.
Step-by-step explanation:
It just is hard to explain but I had the same question.
I believe the answer would be B, since both situations give you 6 chances at drawing/rolling the right number/marble.
Can u be more specific on the options? Cuz there’s nothing for ABCD.
Answer:
let x=rate of the rowing team in still water
x+4=rate of the rowing team with current
x-4=rate of the rowing team against current
travel time=distance/rate
..
90%2F%28x%2B4%29=10%2F%28x-4%29
90x-360=10x+40
80x=400
x=5 rate of the rowing team in still water=5 mph
