Question
Three planks of different lengths, K, L and M are nailed together to make a frame as shown. Plank K has 3 holes which divide it into 4 equal parts. Plank L has 4 holes which divide it into 5 equal parts and Plank M has 5 holes which divide it into 6 equal parts. In the frame, the holes T, U and V are three corners of an equilateral triangle. Plank K is 288 cm long. What is the total length of Plank K, Plank L and Plank M?
3 m

Click button first when a symbol is required. X

Three planks of different lengths, K, L and M are nailed together to make a frame as shown. Plank K has 3 holes which divide it into 4 equal parts. Plank L has 4 holes which divide it into 5 equal parts and Plank M has 5 holes which divide it into 6 equal parts. In the frame, the holes T, U and V are three corners of an equilateral triangle. Plank K is 288 cm long. What is the total length of Plank K, Plank L and Plank M?