Answer:
Are you talking about adding? If you are, the answer is 5 3/4. But if you're talking about subtracting, the answer is 1 1/4.
By addition theorem of probability,
P(AUB) = P(A) + P(B) -P(A∩B)
or
P(A or B) = P(A) +P(B) - P(A and B)
P(A or B) = 0.7 + 0.4 - 0.3 = 0.8
Therefore, the probability that randomly selected person likes pizza or burger is 0.8
Answer:
There are 4 integers between 27 and 53 that have a remainder of 4 divided by 6.
Step-by-step explanation:
At first we need to find which integers between 27 and 53 are divisible by 6, which are, respectively:

All integers that have a remainder of 4 divided by 6 are found by summing 4 to each element of A, that is:

There are 4 integers between 27 and 53 that have a remainder of 4 divided by 6.