Here, voltage (V )= 220 V
current (I) = 8 A
time ( t) = 5 hours
Now power of the iron , P = V * I = 220 * 8 = 1760 WATT = 1.76 KW
Electric unit consumption = P * t = 1.76 * 5 = 8.8 unit
Now, unit consumption per month = 30 * 8.8 = 264 unit
Total electric cost = unit consumed * per unit cost = 264 * 9 = Rs 2376