A unique circle can always be drawn through x number of given non-collinear points, then X must be 

The least number, which is a perfect square and is divisible by each of the numbers 16, 20 and 24 is 

An earthing wire connected to the top of an electricity pole has its other end inside the ground. The foot of the wire is 1.5 m away from the pole and the wire is making an angle of 60° with the level of the ground. Determine the height of pole. 

Ramu sees a train passing over a 1 km long bridge. The length of the train is half that of the bridge. If the train clears the bridge in 2 min, the speed of the train is – 

Direction: A shopkeeper has some kg. rice of same price. He sold 150 kg. rice at 25 Rs. per kg. and earned a profit of 25%, another 180 kg. rice is sold at a profit of 20% and rest are sold at a loss of 10%. If the shopkeeper earns Rs. 1230 profit on all the rice that he has sold then answers the following question:

Find the quantity of those rice that are sold at a loss of 10%. 

In an examination a student had to find 3/14 of a number, he found 3/4th by mistake, his answer was 150 more than the correct answer, find the required number.

If the clock is at 3:17, what time will be seen in the mirror?

If the sum of the interior angles of a regular polygon be 1080 °, the number of sides of the polygon is