According to the rate of electricity charge, the
minimum charge upto 20 units is Rs. 80 and the cost per
unit form 21 un

According to the rate of electricity charge, the
minimum charge upto 20 units is Rs. 80 and the cost per
unit form 21 units to 250 units is Rs. 7.30. How many units
were consumed by Rs. 1248?
(Ans: 180 units)stepwise answer for property long method​

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