I have $16$ categories and each category contains $10$ pages. I can only choose $1$ page from each $16$ categories. All the categories are independent of each other. so what is the possible ways to do so?
I thought of like I can choose 1 out of 10 pages in $16$ categories so it should be $10\choose 1$ multiplied $16$ times. which gives an answer $10^{16}$. so am I correct or I have completely missed the concept ?