A 30- $\mu$ F Capacitor Is Charged to an Unknown Potential V0 and Potential

Multiple Choice

A 30- $\mu$ F capacitor is charged to an unknown potential V0 and then connected across an initially uncharged 10- $\mu$ F capacitor.If the final potential difference across the 10- $\mu$ F capacitor is 20 V, determine V0.

A) 13 V
B) 27 V
C) 20 V
D) 29 V
E) 60 V