O fabrica primit o comanda de scaunr pentru elevi. Ei au livrat in prima saptamana 2 din 5 din intreaga cantitate, in a doua saptamana 1 din 3 din rest, iar in a treia saptamana 1 din 2 din noul rest, iar in a patra saptamana, ultimele 45 scaune. Care a fost comanda de scaune?​

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step-by-step explanation:

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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 %