Foundation June 2018 Paper 3 Q10
10 4 people take 3 hours to paint a fence.
Assume that all people paint at the same rate.
(a) How long would it take one of these people to paint the same fence? [1]
(b) How long would it take 5 people to paint the same fence?
Give your answer in hours and minutes. [4]
Give your answer in hours and minutes. [4]
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 12 | 1 | ||
| Answer | Marks | Part marks and guidance | |
|---|---|---|---|
| 2 h 24 min nfww | 4 | B3 for 2 h and 0.4 \(\times\) 60 oe or 144[min] nfww or B2 for 2.4 h or M2 for \(\dfrac{\textit{their}\ 12}{5}\) or M1 for converting their 2.4 hours correctly to hours and minutes | Working may all be in minutes so award comparable M and B marks oe may be 60 ÷ 10 (= 6) \(\times\) 4 B2 for answer space completed as 2.4 [hours] and 144 [minutes] 2.4 may be \(2\frac{2}{5}\) or equivalent fraction or their 144 minutes, if working in minutes their 2.4 hours or their 144 minutes must come from some working Their 2.4h not integer and > 1 Their 144 min not 60\(n\) and > 60 |