A 40.5 litre fish tank is 4/5 full. how many more litres will it take to fill the tank

Step-by-step explanation:

1-⅘ = ⅕ of the tank remains unfilled

⅕ × 40.5L = 8.1L

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

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 %