The value of unknown pressure P is

Question

The pressure gauges G₁ and G₂ installed on the system shown pressures of P_GI = 5.00 bar and P_G2 = 1.00 bar. The value of unknown pressure P is

    (a) 1.01 bar                                                               (b) 2.01 bar

      (c) 5.00 bar                                                             (d) 7.01 bar