A cable is 1.80 m long. A student removes 35 cm from one end and 250 mm from the other end. What length of cable remains?
1.515 m1.515\ \mathrm{m}1.515 m
1.20 m1.20\ \mathrm{m}1.20 m
1.425 m1.425\ \mathrm{m}1.425 m
1.74 m1.74\ \mathrm{m}1.74 m
39 exam-style questions on Edexcel GCSE Physics 1.1 Units and quantities, covering 1.1.1 SI units for physical quantities and 1.1.2 Unit prefixes, conversions, significant figures and standard form. Each one has a worked solution and a mark scheme showing where the marks go.