Katherine works flexible hours. This month she worked a total of 50 hours, which was 2 more than 3 times as many hours as she worked last month. How many hours did she work last month?

dont think so

step-by-step explanation:

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 %

cross multiplying, we get :

⇒ (3) × (5) = (9) × (x)

⇒ 15 = 9x