O-LevelMathematicsNumber4024/12 · Oct/Nov 2016 · Q173 Marks
Some money is shared between Ali, Ben and Carl in the ratio 5 : 3 : 2. Ben receives $60. How much money is shared?
- (a)Some money is shared between Ali, Ben and Carl in the ratio 5 : 3 : 2. Ben receives $60. How much money is shared?[1]
- (b)Express the ratio 3 1/2 hours : 14 minutes in the form k : 1.[2]
Mark scheme
Marking points from the official mark scheme (Oct/Nov 2016). The mark or mark type is shown in brackets.
- [1] (a) 200
- [2*] (b) 15:1
- C/B1 for any correct unsimplified ratio, e.g. 210 : 14; 105 : 7; 30/2 : 1; 7 : 14/60; 3.5 : 14/60
- or M1 for 3.5×60×60 : 14×60; 3.5×60 : 14
- or B1 for 3½ hrs = 7/2 × 60; or 210 seen.
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