It takes 1 1/3 hours to set up 1/3 of an hour to run and 2/3 of an hour to verify the results. how many hours will it take to complete the test

It will take of an hour to complete the test.

Step-by-step explanation:

We need to convert the mixed number to an improper fraction:

Now, we need to make the following add the fractions in order to calculate how many hours will it take to complete the test. Then, we get:

Therefore, it will take of an hour to complete the test.

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.