v1 Algebra, STD2 A1 2023 HSC 36

The following formula can be used to calculate an estimate for blood alcohol content () for males.
 

is the number of standard drinks consumed

is the person's weight in kilograms

is the number of hours of drinking
 

Min weighs 70 kg. His was zero when he began drinking alcohol. At 10:30 pm, after consuming 4 standard drinks, his was 0.032.

Using the formula, estimate at what time Min began drinking alcohol, to the nearest minute.  (4 marks)