A rectangular wooden plank has a length of 85 cm, to the nearest cm, and a width of 14.6 cm, to the nearest mm.
Work out the upper bound for the perimeter of the plank.
Work out the lower bound for the area of the plank.
Practise OCR GCSE Maths Bounds with exam-style questions for Foundation and Higher tier. 52 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers 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.