You kayak up a river at a rate of 48 feet every 30 seconds. you kayak 423 feet every 3 minutes on the way back down the river. how much farther do you kayak in 5 minutes on the way down the river than in 5 minutes on the way up the river?

answer:   35 % is the probability of a late departure or an early arrival.

step-by-step explanation:

let l represents the late departure and e represents the early departure.

then, according to the question,

p(l) = 12 %,   p(e) = 27 % and = 4 %

and, we have to find out,

but, we know that,

which is the required equation that will use to find the probability of a late departure or an early departure.

therefore,   the probability of a late departure or an early arrival =   35 %

the one where 1 and 2 are directly across from each other.  

see image