Quantitative Aptitude - Arithmetic Ability Questions

Which of the following questions is a statistical question?

In the following question, four number pairs are given. The number on left side of (–) is related to the number of the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

In the following question, select the odd word from the given alternatives.

Rs. x invested at 9% simple interest per annum for 5 years yields the same interest as that on Rs. y invested at 6.25% simple interest per annum for 8 years. Find x:y.

In the given figure, ABCD is a square, BCXYZ is a regular pentagon and ABE is an  equilateral triangle. What is the value in deg of EBZ?

In what time will Rs.4400 become Rs.4576 at 8% per annum interest compounded half-yearly?

The salary of a person is reduced by 20% . To restore the previous salary, his present salary is to be increased by

To get number 40, the number 56/9 should be multiplied with