(a(i))[1]
Find an expression, in terms of $m$, for the number of sacks Paulo buys.
(a(ii))[1]
Find an expression, in terms of $m$, for the number of sacks Jim buys.
(b)[4]
Write an equation, in terms of $m$, and show that it simplifies to $10m^2 + 9m - 162 = 0$.
(c(i))[3]
Solve $10m^2 + 9m - 162 = 0$.
(c(ii))[1]
Find how many sacks of rice Paulo buys.