If 20% of an electricity bill is deducted, then Rs 100 is still to be paid. How much was the original bill?
- 110
- 108
- 125
- None of these
Explanation
After 20% deduction, you pay 80% of the bill.So,
80% of x = 100
→ (80/100) × x = 100
→ 0.8x = 100
→ x = 100 ÷ 0.8
→ x = 125
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