Advanced MathMediumTwo triplings of a population
Advanced Math practice question
A population of 800 bacteria triples every 4 hours. What is the population after 8 hours?
Answer: 7200
800 → 2,400 → 7,200.
Common wrong answers
- If you answered 2400
- 2400 is after 4 hours.
- If you answered 4800
- 4800 adds 2,400 twice, as if linear.
- If you answered 21600
- 21600 is after 12 hours.
More Advanced Math questions
- Medium
What are the solutions to x² − 5x + 6 = 0? - Medium
The graph of f(x) = (x − 3)² + 4 is a parabola. What are the coordinates of its vertex? - Medium
If x² − 2x − 8 = (x + 2)(x − a), what is the value of a? - Medium
If √(x + 5) = 4, what is the value of x? - Medium
If f(x) = x + 3 and g(x) = 2x, what is f(g(4))? - Medium
What are the solutions to x² + 6x + 8 = 0?
Not affiliated with the College Board. SAT is a trademark of the College Board.