I never got taught this but I remember a friend getting taught it which it sounded really easy.
undone ledge
I never got taught this but I remember a friend getting taught it which it sounded really easy.
Don’t worry about question b
night cargo
So we have 18 + 20 + 29 first off
But that adds up to 67 we only have 60 cars
So 7 cars have 2 faults
So take 7 away from 20 and 29
The values you now have are
13, 22, 18, 7
13 faulty brakes
22 faulty tyres
18 pass
7 have both