The Chief Minister of which state was, in October 2017, honoured with the Golden Peacock Award under the category 'Global Leadership in Public Service and Economic Transformation?
The angle of elevation of the top of a pillar from the foot and the top of a building 20 m high, are 60° and 30° respectively. The height of the pillar is
A boat goes 15 km upstream and 10 1/2 km down stream in 3 hrs 15 min. It goes 12 km upstream and 14 km downstream in 3 hrs. What is the speed of the boat in still water?