Intermediate June 2025 Unit 2 Q5
5.
| 1 day and 14 hours | 2 days and 3 hours | 73 hours |
Calculate the mean of the three lengths of times.
Give your answer in days and hours. [4]
The mean = ………………………… days and ………………………… hours
| Scheme | Marks | Comments |
|---|---|---|
| Answer lines take precedence. | ||
| (Mean = correct total time ÷ 3 OR sum of the three correct times ÷ 3) For example:
| M2 | May be seen in stages. Award M2 for the complete correct method (e.g. 6 days ÷ 3 AND 18 hours ÷ 3) Allow rounded or truncated decimals for M2 or M1 (but not for 6·75 days). Allow ‘.’ if used correctly. Award M1 for any one of the following:
|
| 2 days and 6 hours | A2 | CAO. Must come from correct working. If answer line is blank, 2 days and 6 hours must be clearly identified in the working space as a final answer. Award A1 for any one of the following:
Award M2 A1 if the correct total time ÷ 3 is seen but calculated incorrectly and the final answer is expressed correctly in days and hours. For example: 38 + 51 + 73 ÷ 3 = 113·333…(hours) M2 A0 38 + 51 + 73 ÷ 3 = 113·333…(hours) = 4 days and 17(.33…)hours M2 A1 If no marks, award SC1 for appropriate sight of any one of the following (correct conversion of time):
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