Quantitative Aptitude - Arithmetic Ability Questions

What is the measure of an interior angle of a regular decagon?

Which of the following numbers will have an irrational square root?

On a certain principal if the Simple interest for two years is Rs 3000 and Compound interest for the two years is Rs 3225, what is the rate of Interest?

What least value must be assigned to '*' so that the numbers 451 *  603 is exactly divisible by 9?

A vendor buys oranges at the rate of 5 for Rs 6 and sells at the rate of 2 for Rs 3. What will be the result?

A shopkeeper, sold cocoa seeds at the rate Rs 1,230 a kg and bears a loss of 5%. Now if he decides to sell it at Rs 1,353 per kg, what will be the result?

A sum of Rs 2489 is divided among A, B and C such that if Rs 12, Rs 12 and Rs 5 be diminish from the shares of A, B and C respectively, then theirshares will be in the ratio of 5 : 3 : 4. What is the new share (in Rs) of C?

Of the 5 numbers whose average is 72, the first is 1/8 times the sum of other 4. The first number is _____.