The number of colleges in Leeds is 17 less than thrice the number of colleges in Dublin. If the number of colleges in Dublin is y, how many colleges are there in Leeds?
Niall rolls a cube in which the letters J, H, Q, Y, A and R appear on faces 1, 2, 3, 4, 5, and 6, respectively. What is the fraction of symmetric letters (either horizontal or vertical) on the cube?
Lorna has a 12m long wire. She cuts it into 3 pieces, i.e., x, y, and z. Wire x is 112m long. Wire y is 437m longer than the wire x. Find the length of the wire z.