Quantitative Aptitude - Arithmetic Ability Questions

If 11-13xx + 11-13yy + 11-13zz = 5 then what is the value of 1x + 1y + 1z = ?

The income of a person is Rs 45000 and his expenditure is Rs 33000. If his income is increased by 22% and expenditure in increased by 11%, then what will be the percentage increase in his savings?

In what ratio does the point T (3,0) divide the segment joining the points S (4,­2) and U (1,4)?

If 9x2 + 16y2 = 60 and 3x + 4y = 6, then the value of xy is

Which one is the largest among the fractions (5/113), (7/120), (13/145) and (17/160)?

An angle is smaller than its supplementary angle by 70°. What is the measure of the angle?

If (6x ­- 1) -­ (8x -­ 5) = 7, then the value of x is _______ .

The ratio of curved surface area and volume of a cylinder is 1 : 7. The ratio of total surface area and volume is 187 : 770. What is the respective ratio of its base radius and height?