heshamelaziry wrote:papgust wrote:You can choose any number that is comfortable for you. For me, it was comfortable using 1 which is helpful in the calculation of this problem i've shown
If you can,please whow how to do it with 80
You don't want to pick 80 here. Before you pick a number, reason with the problem a little bit. When picking numbers you want to pick numbers that are
permissible and
manageabe. So, you always want to think about what kind of numbers will be manageable given the specific conditions of the problem. Here, whatever number we pick, we are going to be dividing it by 2 over and over again. So, be sure to pick a number that can divide 2 over and over again nicely. Ideally, you want to pick a power of 2. Since we will be dividing it by 2 five times, you can pick something like 2^5 or 2^6.
If you pick 2^6 = 64, then original number of leaves is 64. We half it once, giving us 32, half it again giving us 16, and then half it three more times arriving at 2. So when we start with 64 leaves, we are left with 2. Therefore, we have lost 62. So, the proportion lost is 62/64 = 31/32.
Kaplan Teacher in Toronto
