8
Question The figure shows the diagram for a window with a grill. What is the gap between the two rods in the grill?
Total height of the window, including the frame = 34 cm Total height of the window excluding the frame = 34 cm – 3 cm – 3 cm = 28 cm Width of one rod of grill = 2 cm No. of rods of the grill = 5 Total width of 5 rods = 5 × 2 cm = 10 cm Let the height of 1 gap be x cm. No. of gaps = 6 Total height of gaps = 6x According to the question 10 + 6x = 28 ⇒ 6x = 28 – 10 ⇒ 6x = 18 ⇒ x = 3 Gap between two rods = 3 cm.