After selling a watch, Suraj found that he had made a loss of 10%. He also found that had he sold it for Rs.27 more, he would have made a profit of 5%. If now he sells his watch for Rs 540 find his profit percent. एक घड़ी बेचने के बाद सूरज नें महसूस किया कि उसे 10% का नुकसान हुआ । उसने यह भी पाया कि वह इसे 27 रुपए अधिक में बेचता तो , वह 5% का लाभ कमाता । यदि अब वह 540 रुपए में अपनी घड़ी बेचता है उसका लाभ प्रतिशत ज्ञात कीजिये ।