A dealer purchased 250 bulbs for Rs.10 each. However, 12 bulbs got fused which he had to throw away. He sold the remaining bulbs at Rs.12 each. Find the gain or loss per cent in the dealing.​

Fill in the blank 1. a rhombus is a rectangle a) always b) sometimes c) never 2. a square is a quadrilateral a) always b) sometimes c) never 3. a trapezoid is a kite a) always b) sometimes c) never 4. a quadrilateral is a kite a) always b) sometimes c) never 5. a square is a rhombus a) always b) sometimes c) never 6. a parallelogram is a rectangle a) always b) sometimes c) never