Q3Section GA (General Aptitude (Q1–Q10))3 of 65
Energy cost and percentage increase
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?
Pick an option to check your answer. In a mock test a wrong answer here costs 1/3 mark.