An email spam reaches three readers. each of them forwarded the same email to three different readers. each of these new readers further forwarded the same email to three different readers, who each forwarded the same email to yet again three different readers. how many people have read that email?
81
120
243
363

Second Option is correct.

Step-by-step explanation:

Since we have given that

Number of readers = 3

Each of them forwarded the same email to number of readers = 3

So, our equation becomes

Similarly, each of them again forwarded the same email to number of readers = 3

So, our equation becomes

Again each of them forwarded the same email to number of readers = 3.

So, our equation becomes

So, Number of people have read that email is given by

Hence, Second Option is correct.

14 ft 7 inches

step-by-step explanation:

since each model inch corresponds to 25 real inches, 7 model inches will correspond to

7×25" = 175"

at 12" per foot, that is 14 feet, 7 inches.