The probability that a student correctly answers on the first try (the event a) is p(a) = 0. 2. If the student answers incorrectly on the first try, the student is allowed a second try to correctly answer the question (the event b). The probability that the student answers correctly on the second try given that he answered incorrectly on the first try is 0. 3. Required:
Find the probability that the student correctly answers the question on the first or second try.

answer: a.

step-by-step explanation: the answer is a. because, you need to converge the fractions to find a solution.

answer: first option i.e. 'a' is correct.

step-by-step explanation:

since we have given that

number of minutes to wrap a small gift box = 4 minutes

we need to find the number of gifts to be wrapped in 5 minutes

since there is a direct variation, as the number of minutes will increase with   number of gifts to be wrapped.

so, let the number of gifts to be wrapped in 5 minutes be x.

so, it becomes,

hence, first option 'a'   is correct.

look at photo