easy · GMAT Quant
A chemical process plant tracks reactant concentration C, in millimoles per liter (mM), as a linear function of reaction time t, in minutes. At t = 12, C = 64, and at t = 28, C = 40.
How many minutes of reaction time t will have elapsed when concentration drops to 25 mM?
- 38
- 54.67
- 26
- 82
- 1.5
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