7996 Ben sat outside his school in Cambridge and made a note of the colour of
the first 100 cars that passed.
27 of the cars were red.
In Britain there are around 35 million cars on the road .
Use bens findings to give an estimate of how many cars on the road are red

1,296,296 cars are red.

1,407.5 hours

step-by-step explanation:

we first convert all the time to hours and then sum them up.

there are 24 hours in 1 day, in 58 days, there are 24 x 58 = 1,392 hours.

there are 60 minutes in 1 hour, thus, 30 minutes will be equivalent to 30 / 60 = 0.5 hours.

therefore, the number of hours it will take mercury to complete a full rotation is 1,392 + 15 + 0.5 = 1,407.5 hours