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The charge of eletricity for the first 20 unit is Rs 80 and Rs 7 per unit from 21 unit to 30 units. If service is Rs 75 find the total charge of 28 units​
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The charge of eletricity for the first 20 unit is Rs 80 and Rs 7 per unit from 21 unit to 30 units. If service is Rs 75 find the total charge of 28 units​

User Tima
by
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1 Answer

5 votes
First 20 units = Rs 80

28 - 20 = 8 units

8 x 7 = Rs 35

80 + 35 = Rs 115
User Nachiketkulk
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