(a)[3]
Show that, on Ananya’s eleventh birthday, the amount she gets from her mother is greater than the amount she gets from her father.
(b)[5]
Find the total amount of money Ananya has received up to and including her eighteenth birthday.
Mathematics 9709 · AS & A Level · Series
Series — practice question
On her birthday each year, Ananya is given some money by each parent.
For Ananya’s first birthday, her father gives her $\$10$. In every later year, he increases this by $\$5$ compared with the previous year.
For Ananya’s first birthday, her mother also gives her $\$10$. In every later year, she increases this by $20\%$ compared with the previous year.