Quantitative Aptitude - Arithmetic Ability Questions

If 5x + 4(1 -­ x) > 3x - ­4 > 5x/3 -­ x/3; then x can take which of the following values?

Calculate the ratio of the area of two similar triangles if the sides of the triangles are in the ratio of 9:4.

The total surface area of a hemisphere is 462 sq.cm. Find its diameter (in cm).

The area of a triangle ABC is 63 sq.units. Two parallel lines DE, FG, are drawn such that they divide the line segments AB and AC into three equal parts. What is the area of the quadrilateral DEGF?

The difference between the ages of mother and son was 21 when mother's age was 43. If father is elder by 3 years to mother, what will be the difference between the ages of son and father when father attains 50 years?

The diagonal of a square is 10 cm. What is the length (in cm) of its side?

Find the sum of interior angles of a decagon?

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