Question

Question
Sharon called 3 friends on Friday. On Saturday, each of those 3 friends called 3 different friends. On Sunday, each person who was called on Saturday called 3 different people.

How many friends were called on Sunday?

Answer 1

To find out how many friends were called on Sunday, we can break things down step by step:

1. **Friday**: Sharon called 3 friends.
- Total friends called on Friday = 3.

2. **Saturday**: Each of those 3 friends calls 3 different friends.
- Each of the 3 friends called 3 friends, so:
\[
3 \text{ friends} \times 3 \text{ calls per friend} = 9 \text{ friends called on Saturday}
\]

3. **Sunday**: Each of the 9 friends called on Saturday calls 3 different friends.
- Each of the 9 friends called 3 friends, so:
\[
9 \text{ friends} \times 3 \text{ calls per friend} = 27 \text{ friends called on Sunday}
\]

Thus, the total number of friends called on Sunday is \( \boxed{27} \).