In a lawn, there is a patch of clover. Every week, the patch doubles in size. If it takes 12 weeks for the patch to cover the entire lawn, how long would it take for the patch to cover half of the lawn?

11 weeks

A bag contains five purple ("P") blocks and one yellow ("Y") blocks. Without looking into the bag you reach in, take out a block, return the block to the bag, and then repeat the same process a number of times. what is the sequences of selected blocks

To find out how long it would take for the patch to cover half of the lawn, we can work backwards from the information given.

Let's start with the fact that the patch takes 12 weeks to cover the entire lawn. This means that in the first week, the patch would cover half of the lawn, since it doubles in size each week.

So, we can conclude that it would take the patch 1 week to cover half of the lawn.