You have two capacitors with capacities of 50 pF and 100pF respectively. If you want to have less capacity, you can: connect the capacitors indifferently in series or in parallel connect the capacitors in parallel, thus obtaining a capacitance equal to 45.45pF swap the capacitor of higher capacity with the one of lower capacity connect the capacitors in series, thus obtaining a capacitance equal to 33.33pF

You have two capacitors with capacities of 50 pF and 100pF respectively. If you want to have less capacity, you can: connect the capacitors indifferently in series or in parallel connect the capacitors in parallel, thus obtaining a capacitance equal to 45.45pF swap the capacitor of higher capacity with the one of lower capacity connect the capacitors in series, thus obtaining a capacitance equal to 33.33pF