Question
Which is the outermost part of the
earth?Solution
The outer layer of the Earth is called the crust. This is the solid layer of the Earth. This layer is formed by the solidification of the molten lava and so the rocks contain silicate and alumininum.
When 16 years is subtracted from the present age of A and the obtained result is divided by 3, then the present age of his nephew is obtained. If the pr...
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Downstream speed of a boat is (8/7)th of the speed of the boat in still water. Find the time taken by the boat to cover 280 km downstream if it covers 2...
The average age of 20 girls is 54 years. If the age of two more girls is added the average decreases by half a year. What is the sum of the age of new g...
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