Question

On Tuesday, you invited 2 friends to your party. On Wednesday, each of these friends invited 2 other friends. This pattern continued on Thursday and Friday. How many people were invited on Friday? Write the answer as a power. How many people were invited in all? Explain the reasoning.

Answer 1

Answer:

I think that answer is

on Tuesday=2

on Wednesday=4

on Thursday=8

on Friday=16

now total invited guest=16 without you

Answer 2

I believe the answer is:

(not including yourself)

Tuesday: 2 (0 invited)

Wednesday: 2+2×2=6 (4 invited)

Thursday: 6+4×2=14 (8 invited)

Friday: 14+8×2=30 (16 invited)

31 people including yourself in all, and 16 people invited on Friday.

Step-by-step explanation:

Each day every person invites two people to the next party (unless they have already done so), with them also going as well. Do not forget to include the people being invited to the party in your numbers, and remember each person can only invite someone once.