Physics - Current Electricity Question with Solution | TestHub

In the circuit shown in the figure, reading of voltmeter is${\mathrm{V}}_1$when only${\mathrm{S}}_1$is closed, reading of voltmeter is${\mathrm{V}}_2$when only${\mathrm{S}}_2$is closed and reading of voltmeter is${\mathrm{V}}_3$when both${\mathrm{S}}_1$and${\mathrm{S}}_2$are closed. Then