Kabilan was having 10 pencils with him. He gave 2 pencils to senthil and 3 to karthick. Next day his father gave him 6 more pencils, from that he gave 8 to his sister. How many pencils are left with him?

A boy of ten years had suffered from chicken-pox .His grand mother consoled him that he is not expected to have it for rest of his life.Whether his grandmother is right ?If so how it happens?

A king ordered his Goldsmith to make a crown which should be of pure gold. SO the goldsmith to made a crown of pure gold & brought it to king. but the king was not contended with the crown as he suspected whether it is made of pure gold or not. So he called for Archimedes and asked him to check whether it is a pure gold crowm. Archimedes was serious about this and went his home thinking how to solve this issue. He wanted to take bath, all of a sudden the jumped on to the bath tyb. Water inside the tub had splashed out of it. An idea striked him suddenly he went running naked straight from his bathroom to the king's pace shouting Eureka Eureka on the road side. From this what do we infer ? How Archimeded would have solved this problem ?

A king ordered his Goldsmith to make a crown which should be of pure gold. SO the goldsmith to made a crown of pure gold & brought it to king. but the king was not contended with the crown as he suspected whether it is made of pure gold or not. So he called for Archimedes and asked him to check whether it is a pure gold crowm. Archimedes was serious about this and went his home thinking how to solve this issue. He wanted to take bath, all of a sudden the jumped on to the bath tub. Water inside the tub had splashed out of it. An idea striked him suddenly he went running naked straight from his bathroom to the king's pace shouting Eureka Eureka on the road side. From this what do we infer ? State Archimedes principle.

A candidate is required to answer 6 questions out of 10 questions given in two parts having 5 questions each. He is not permitted to answer more than 4 questions from either part. In how many ways can he choose the questions.

A man is walking towards a vertical pillar in a straight path, at a uniform speed. At a certain point A on the path, he observes that the angle of elevation of the top of the pillar is 30^0 . After walking for 10 minutes from A in the same direction, at a point B, he observes that the angle of elevation of the top of the pillar is 60^0 . Then the time taken (in minutes) by him, from B to reach the pillar, is : (1) 6 (2) 10 (3) 20 (4) 5

A student had a breakfast of 200 food calories. He thinks of burning this energy by drawing water from the well and watering the trees in his school. Depth of the well is about 25 m. The pot can hold 25 L of water and each tree requires one pot of water. How many trees can he water? (Neglect the mass of the pot and the energy spent by walking. ("Take g" = 10 ms^(-2))