The virus spreads rapidly in the town. It infected the people - First day: 8, Second day: 16, Third day: 32. What will be the number of people infected on the next day?
Correct answer: C. 64 people
- A. 44 people
- B. 56 people
- C. 64 people
- D. 74 people
Explanation
Each figure is double the one before, so the growth is geometric rather than arithmetic and the next term is 32 multiplied by 2, giving 64. Looking for a constant difference instead would suggest adding 16 to reach 48, which fits none of the options. Checking whether a series grows by a fixed amount or a fixed factor is always the first step.
This question appeared on the UHS MDCAT 2025 paper, which you can sit online with every answer explained.
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