Quantitative Aptitude - Arithmetic Ability Questions

A sum of money invested at simple interest becomes 13/10 of itself in 2 years and 6 months. What is the rate (in percentage) of interest per annum?

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

Ravi had five subjects in his final examination. The maximum marks in each subject are 100. If his percentage in four subjects is 80, and he scores 65 marks in the fifth subject, determine his overall percentage for the five subjects.

In a triangle ABC, a line is drawn from C which bisects AB at point D. Find the ratio of area of the triangles DBC and ABC.

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

If one of the zeros of the quadratic polynomial (k - 1)x2 + kx + 1 is -3 then the value of k = ?

Which of the following words does NOT belong with the others?

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