Oscar wants to find an estimate for the number of rabbits in a field.
He catches 30 rabbits and fits each rabbit with a small ear tag. He then releases the rabbits back into the field.
Later that day, he catches a second sample of 45 rabbits.
Oscar finds that 10 of these rabbits are wearing ear tags.
Work out an estimate for the number of rabbits in the field.
Write down an assumption you have made.
Practise Edexcel GCSE Maths Capture Recapture with exam-style questions for Foundation and Higher tier. 20 questions, matched to the Edexcel GCSE Maths (1MA1) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.