The charge of electricity for the first 20 units is Rs 70 and that at 21 to 250 units is calculated at the rate of Rs 6.50 per unit. If the total charge of electricity was Rs 655, how many units of electricity was consumed?
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Answer:
Total units = 160 units.
Now, Excessive number of units = 160 – 20 = 140 units.
Now, Cost of 140 units = 140 * Rs. 7.30
= Rs. 1,022.
Now, Total consumption of electricity = Rs. 1,022 + Rs. 80
= Rs. 1102.
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Answer:
For First 20 units Charge is Rs 70
If Total Charge is Rs 655 , then charge for Rest Units is Rs 655 - 70 = Rs 585
After 20 units is Consumed 1 unit costs Rs 6.50
Then 655 / 6.50 gives us 90 units
So Total units consumed = 90 + 20 = 110 units
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