Matilda Casey

Mathematics

20 August, 05:29

In case of an

emergency, the school has a calling list so

that everyone is called in the least amount

of time. Each of the first 3 people on

the list calls another 3 people on the list.

Then, each of the people in the second

group calls another 3 people on the list,

and so on. The fifth group of people will

make 243 calls. Is this statement accurate?