Quantitative Aptitude - Arithmetic Ability Questions

A person bought an item for Rs. 1500 and sold it at a profit of 12%. What was the selling price of the item?

If the average age of four children is 12 years and the average age of these children and their fathers is 20 years, what is the age of the father?

ΔPQR is right angled at Q. If cotP = 5/12, then what is the value of tanR ?

If y=2secθ and x=3tanθ then x29-y24 is

The greatest perfect square number of 6 digits is

Product of digits of a 2­digit number is 12. If we add 36 to the number, the new number obtained is a number formed by interchange of the digits. What is the number.

John is 15 years younger than Jill, 12 years ago, Jill's age was 1.5 times that of John. Jill is now ___ years old.

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.