The formula below is used to estimate the number of hours you must wait before your blood alcohol content (BAC) will return to zero after consuming alcohol.
\(\text{Number of hours}\ =\dfrac{\text{BAC}}{0.015}\)
The spreadsheet below has been created by Ben so his 21st birthday attendees can monitor their alcohol consumption if they intend to drive, given their BAC reading.
- By using appropriate grid references, write down a formula that could appear in cell B5. (2 marks)
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- Ben's friend Ryan's reading reflects that he will have to wait 11 hours for his BAC to return to zero. Using the formula, calculate the value Ryan entered into cell B3. (2 marks)
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