This is the answer tab
Firstly, let us draw the circuit. It can be drawn as the following:
Capacitors have formulas which are the opposite of the ones for resistors. So, if we want to associate them in series, we need to use the formula we use for parallel resistors
For the series association we can then calculate:
Then, in order to associate them in parallel, all we need to do is sum. So we get:
Our answer is C = 10.07F