What is the value of sec 4π/3?

A rectangular swimming pool of length 20 m and breadth 10 m has a uniformly sloping floor. It is 1 m in depth on one end of its length and 3 m at the other. How much water is needed to completely fill this pool? (Take π = 22/7)

On a certain principal if the simple interest for two years is Rs 2800 and compound interest for the two years is Rs 2996, what is the rate of Interest?

√(1 + tan2A)/tanA is equal to

The largest 5 digit number exactly divisible by 89 is:

Can anyone solve this in 20 seconds?

M is a 7 letter word, M is impossible for GOD, The poor have M and The rich look for M from the poor, If you eat M you will die, M is more important than your life. I swear i will give you M if you get the answer. What is M?

A man travels 430 kilometres in, partly by rail and partly by steamer. He spends 10 hours more time on steamer. If the velocity of the steamer is 25 km/hr and the velocity of rail is 65 km/hr, how much distance does he cover by steamer?