Free SAT Practice Question

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ID: DSAT-MATH-PSDA-020
Section: Digital SAT Math - Problem Solving & Data Analysis (PS&DA)
Topics: Ratios, rates, proportional relationships, and units; MCQ
Difficulty level: Medium

Practice Mode: Single selected Question » Back to Overview

By the end of 9 hours after the initial observation, there were 5,400,000 viruses per microliter. The number of viruses per microliter triples every 3 hours. How many viruses per microliter were there at the time of the initial observation?

A100,000
B200,000
C600,000
D48,600,000
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