A group of 20 people pay a total of £20 to see an exhibition. The admission price is £3 for men, £2 for women and 50p for children. How many men, women and children are there in the group?
Age 14 to 16 Challenge Level:
What is the gradient of each line? Are any of the lines parallel?
Where does each line cross the axes?
Does it help to draw a rough sketch of each line?
How can you use algebra to find out the exact coordinates of the points of intersection?
The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the
NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to
embed rich mathematical tasks into everyday classroom practice.