Question

the rate of electricity charge of 20 units is RS 3 per units and rs 6.50 per units from 21 to 30 unit. find the charge of consumption of 28 units with rs 50 service charge​

Answer 1

electricity consumed:28 units

charge upto 20 units : 20 * Rs 3 : Rs 60

charge from (21 to 28) : 8 * Rs 6.50 : 52

total charge including service charge : Rs 60 + Rs 52 + Rs 50 : Rs 162