Quantitative Aptitude - Arithmetic Ability Questions

The difference between simple and compound interest (compounded annually) on a sum of money for 3 years at 10% per annum is Rs. 93. The sum (in Rs.) is:

40.36 ­- (9.347 -­ x ) -­ 29.02 = 3.68. Find x.

If the standard deviation of a population is 4.5, what would be the population variance?

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Which of the following numbers is composite?

The lengths of diagonals of a rhombus are 24cm and 10cm the perimeter of the rhombus (in cm ) is :

In an isosceles trapezium ______.

If X and Y are the two digits of the number 347XY such that the number is completely divisible by 80, then what is the value of X + Y?