The canteen had "s" sausages and sold 25 at lunchtime. how many sausages were left?

Initially canteen had "s" sausages.

25 are sold at lunchtime

Number of sausages left =s-25

(s-25 )

Step-by-step explanation:

Given :

Total sausages at the canteen = s

Number of sausages sold at lunch time = 25

Therefore, number of sausages left at the canteen = ( s - 25 )

Thus,  (s-25 ) sausages are left at the canteen after lunch time.

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 %