Quantitative Aptitude - Arithmetic Ability Questions

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.

The profit (in Rs.) after selling an article for Rs.524 is the same as the loss (in Rs.) after selling it for Rs.452. The cost price of the article is:

Which of the following is correct?

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 x/2 - [4(15/2 - x/3)]/3 = -x/18, then what is the value of x?

What is the equation of a line of slope 1/3 and y-intercept 5?

Find the HCF & LCM of 16, 24.

If the roots of the equation a(b – c)x2 + b(c – a)x + c(a – b) = 0 are equal, then which of the following is true?