Quantitative Aptitude - Arithmetic Ability Questions

The radius of a hemisphere is 7 cm, find its volume?

In ΔPQR, PQ = PR = 18 cm, AB and AC are parallel to lines PR and PQ respectively. If A is the mid-point of QR, then what is the perimeter (in cm) of quadrilateral ABPC?

The product of two numbers is 40. One of them is 2.50. What is the other number?

The number of sides of a regular polygon whose exterior angles are each 40 deg is

What is the reflection of the point (-1 , 3) in the line x = -4?

If 3x ­- 1 < 5x + 2 and 3x + 5 < 6 -­ 4x; then x can take which of the following values?

The value of k, for which the quadratic equation 4x2 + 4√3x + k = 0 has equal roots is

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.