See attached file for diagram.
Calculate the equivalent capacitance of the circuit shown in the diagram above (image attached); where C1 = 6.75 mF, C2 = 3.20 uF, C3 = 6.35 uF, and C4 = 4.40 uF.
This one is neither all-parallel nor all-sequential but mixed and you have to move small steps.
Start from the ...
In five lines, the problems are solved.