4MA0 Foundation January 2013 Paper 2 Q25
25 \(\dfrac{5}{9}\) of the students in a group are male.
\(\dfrac{5}{6}\) of the female students in the group are right-handed.
Work out the fraction of students in the group who are right-handed females.
(3)
| Scheme | Marks |
|---|---|
| \(1 - \dfrac{5}{9}\) or \(\dfrac{4}{9}\) seen | M1 |
| \(\text{“}\dfrac{4}{9}\text{”} \times \dfrac{5}{6}\) oe or \(\dfrac{5}{9} \times \dfrac{5}{6}\) oe | M1 |
| \(\dfrac{20}{54}\) or \(\dfrac{10}{27}\) | A1 |
| (3) |
Notes
A1: ft from “\(\dfrac{4}{9}\)”