Compound Units: Speed, Density & Best Value (Year 8)
Free printable UK Year 8 (Key Stage 3) maths worksheet: solve problems involving speed, density and unit pricing / best value.
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Grade 7 · Math worksheet
Name
Date
Math
Compound Units: Speed, Density & Best Value
Use the compound-unit formula (rate = total / count) to solve each problem.
- 1.A car travels 450 km in 6 hours. Find its average speed.
- 2.A car travels 124 km in 4 hours. Find its average speed.
- 3.A cyclist rides at 53 km/h for 3 hours. Find the distance travelled.
- 4.A cyclist rides at 55 km/h for 2 hours. Find the distance travelled.
- 5.A block has a mass of 120 g and a volume of 12 cm3. Find its density.
- 6.A block has a mass of 54 g and a volume of 6 cm3. Find its density.
- 7.A material has a density of 5 g/cm3. Find the mass of 9 cm3 of it.
- 8.A material has a density of 3 g/cm3. Find the mass of 12 cm3 of it.
- 9.A pack of 9 pens costs £18. Find the price per pen.
- 10.A pack of 9 pens costs £81. Find the price per pen.
- 11.Pack A: 4 biscuits for £16. Pack B: 2 biscuits for £10. Which pack is better value, and what is the price per biscuit for each?
- 12.Pack A: 10 biscuits for £60. Pack B: 4 biscuits for £36. Which pack is better value, and what is the price per biscuit for each?
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