Quantitative Aptitude - Arithmetic Ability Questions

If the selling price of an article is doubled, then its loss percentage gets converted into the equal profit percentage. What is the loss percentage?

What is the difference of the cube and square of the common root of (x2 – 8x + 15) = 0 and (y2 + 2y – 35) = 0?

Average of 31 numbers is 19. If the average of first 8 numbers is 24, then what is the average of the remaining numbers?

If in 2 years at simple interest the principal increases by 18%, what will be the compound interest (in Rs) earned on Rs 7000 in 3 years at the same rate?

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

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

If a3+1a3 = 2, then the value of a2+1a?

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?