Foundation June 2025 Paper 2 Q27
27 Metal rods are made from steel with density 8 g/cm3
Each metal rod has a volume of 1500 cm3
The maximum mass of metal rods that can be put on a trolley is 300 kg.
Work out the greatest number of metal rods that can be put on the trolley. (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| 25 | P1 | for working with density, eg \(8 \times 1500\ (= 12\,000)\) or [density] \(\times\, 1500\) |
| P1 | for a correct conversion, eg \(\text{``}12\,000\text{''} \div 1000\ (= 12)\) or \(\dfrac{8}{1000}\ (= 0.008)\) or \(300 \times 1000\ (= 300\,000)\) or [mass] \(\div\, 1000\) | |
| A1 | cao |
Additional guidance
P marks can be awarded in either order
[density] is \(8 \times 10^n\)
Condone \(8 \times 1500 \times 300\) for this mark only
P marks can be awarded in either order
[mass] must be what they believe to be mass following a calculation that uses 8 and 1500 but not 300