Foundation June 2023 Paper 3 Q25
25 Lava flows from a volcano at a constant rate of 11.9 m\(^3\)/s
How many days does it take for 67 205 600 m\(^3\) of lava to flow from the volcano?
Give your answer correct to the nearest day. (3)
| Answer | Mark | Mark scheme |
|---|---|---|
| 65 | P1 | for a correct process to find the number of seconds, eg \(67\,205\,600 \div 11.9\ (= 5\,647\,529.4...)\) or for a correct process to convert between seconds and days, eg \(24 \times 60 \times 60\ (= 86\,400)\) oe, may be seen in stages or \(11.9 \times 60 \times 60 \times 24\ (= 1\,028\,160)\) |
| P1 | for a complete process, eg \(\text{``}5\,647\,529.4...\text{''} \div \text{``}86\,400\text{''}\) or \(67\,205\,600 \div \text{``}1\,028\,160\text{''}\) | |
| A1 | accept answers in the range 65 to 65.4 or 66 |
Additional guidance
Note that this mark may be awarded at any stage in the working.
If a correct answer within the range is shown in working but incorrectly rounded award full marks.