Quantitative Aptitude - Arithmetic Ability Questions

Ganesh invested an amount of Rs x in a fixed deposit scheme offering 5% per annum for 1st year and 15% per annum for 2nd year and received an amount of Rs 9660 after two years. What is the value of x (in Rs)?

Complete the analogy 3 : 11 :: 7 : ___

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

The average of 6 consecutive integers is 15/2. What is the average of last three integers?

A fraction becomes 6/5 when 5 is added to its numerator and becomes 1/2 when 4 is added to its denominator. What will be the value of the fraction?

A dealer marks a washing machine for Rs. 7500, and allows a discount of 6% on it. Find the selling price

The standard deviation of the set {10, 10, 10, 10, 10} is

A shopkeeper cheats to the extent of 11% while buying and selling fruits, by using tampered weights. His total gain in percentage is