Question

36. During a 5-day festival, the number of visitors tripled each day. If the festival opened on a Thursday with 345 visitors, what was the attendance on that Sunday?

A. 345
B. 1,035
C. 1,725
D. 3,105
E. 9,315

Answer 1

Thursday to Friday: 1035. Friday to Saturday: 3105. Saturday to Sunday: *9315*.

Answer 2

Day 1 (Thursday) = 345
Day 2 (Friday) = 345(3) = 1035
Day 3 (Saturday) = Day2(3) = 3105
Day 4 (Sunday) = Day3(3) = 9315
...I would say 9315.

Answer 3

how did you get the answer, is there a formula for this?

Answer 4

I just kept multiplying by 3.

Answer 5

\[\large A_{\text{sunday}}=A_{\text{thursday}}\times3^{|\text{sunday}-\text{thursday}|}\]\[\quad\qquad=A_{\text{thursday}}\times3^{3}\]\[\qquad=345\times27\]\[\small\quad=\]