(a(i))[3]
Find the number of integers from $100$ to $999$ with all three digits different.
(a(ii))[4]
Find the number of values in part (i) that are odd and greater than $700$.
(b)[4]
A bunch of flowers is made up of roses, tulips and daffodils. Tom buys a bunch of $7$ flowers from a shop for a friend. He must include at least $2$ of each type. The shop stocks $6$ roses, $5$ tulips and $4$ daffodils, all distinct from one another. Find the number of different bunches of flowers that can be made.