The greatest value of $$ Sin^{4}θ+Cos^{4}θ $$ is:

The sum of squares of three numbers is 532. And the ratio of first to the second as also of the second to the third is 3:2. What is the second number?

From a solid cylinder whose height is 12 cm and diameter 10 cm a conical cavity of same height and same diameter of the base is hollowed out. The volume of the remaining solid is (cm³)approximately .Π=22/7

If A purchased 109 cars for Rs.2,64,89,071. How much does 1 car cost? 

In one glass, milk and water are mixed in the ratio 3:5 and in another glass they are mixed in the ratio 6:1.In what ratio should the content of the two glasses be mixed together so that new mixture contains milk and water in the ratio 1:1?

B borrows 5,000 from A at 6 % p.a. simple interest and lends it to C at compound interest of 10 % p.a. If B collects the money back from C after 2 years and repays A, the profit made by B in the transaction is 

A train passed by a man standing on the platform in 7 seconds and passed by the platform completely in 28 seconds. If the length of the platform is 330 metres, what is the length of the train?

What will come in place of the question mark (?) in each of the following series?

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