Which of the statements given below are correct? 1. The author of the novel 'Air' is Geoff Ryman. 2. The author of the novel 'Ulysses' is James Joyce. 3. The author of the novel 'The Great Gatsby' is F. Scott Fitzgerald.
From a point on a bridge across the river, the angles of depression of the banks on opposite sides of the river are 30° and 45° respectively. If the bridge is at a height of 2.5m from the banks, then the width of the river is (take √3 = 1.732)