Section: General Aptitude | Marks: 1
An electricity utility company charges ₹ 7 per kWh (kilo watt-hour). If a 40-watt desk light is left on for 10 hours each night for 180 days, what would be the cost of energy consumption? If the desk light is on for 2 more hours each night for the 180 days, what would be the percentage-increase in the cost of energy consumption?
- A. ₹ 604.8; 10%
- B. ₹ 504; 20%
- C. ₹ 604.8; 12%
- D. ₹ 720; 15%
Answer: B. ₹ 504; 20%