Question

calculate the month cost of using 50 Watt energy saver for 8 hours daily in your study on assume the price of a unit is rupees 12​

Answer 1

Answer:

144

Explanation:

since standard measurement is in KWH

so we convert 50watt to kilowatt =50/1000

it is used for 8hrs

so 50/1000×8=0.4 units

or 4/10=2/5 units per day

let's assume a month has 30 days

so 2/5×30= 12units.

so amount to be paid is 12×12=rupees 144