Question

Mr. Sharma had gone on a holiday with his family for one month. After a month, when he returned and opened the door. To his horror, he found.....

Answer 1

......that he had kept the air conditioner(A/C) switched on for one whole month. But the A/C wasn't working now .And now they were worried for two things: The light bill and for the broken air conditioner(as the hot summer holidays were yet to be finished).

Hope this helps you. Forgive my mistakes, if any.