Advanced MathEasy–MediumTwo triplings
Advanced Math practice question
A quantity starts at 100 and triples every hour. What is the quantity after 2 hours?
Answer: 900
100 × 3 × 3 = 900.
Common wrong answers
- If you answered 300
- 300 is after one hour.
- If you answered 600
- 600 adds 300 twice, as if the growth were linear.
- If you answered 2700
- 2700 is after three hours.
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For x ≠ 0, which expression is equivalent to (x² + 3x) / x? - Easy–Medium
What are the solutions to the equation 2(x − 3)² − 32 = 0 ?
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