O-LevelMathematicsNumber4024/12 · May/June 2021 · Q143 Marks
The length of a path is measured as 62 m, correct to the nearest metre. Write down the upper bound for the length of the path.
- (a)The length of a path is measured as 62 m, correct to the nearest metre. Write down the upper bound for the length of the path.[1]
- (b)The mass of a bag of peanuts is 80 g, correct to the nearest 10 grams. Calculate the lower bound for the mass of 5 of these bags of peanuts.[2]
Mark scheme
Marking points from the official mark scheme (May/June 2021). The mark or mark type is shown in brackets.
- [1] (a) 62.5
- [2] (b) 375 final answer
- [2] (b) B1 for 75 seen
- [2] (b) If 0 scored, SC1 for answer 397.5 or 350
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