Carcass wrote:
The number of people surfing the Internet doubles every three months. If the number of people surfing the Internet today is 10^3, how many people will be surfing the Internet in one year?
A. \(4 \times 10^3\)
B. \(10^3 \times 2^4\)
C. \(10^7\)
D. \(10^7 \times 24\)
E. \(10^{11}\)
We can solve this using a table:
Time: # of internet surfers0 months : \(10^3\)
3 months : \((10^3)(2)\)
6 months : \((10^3)(2)(2)\)
9 months : \((10^3)(2)(2)(2)\)
12 months : \((10^3)(2)(2)(2)(2) = (10^3)(2^4)\)
Answer: B