Quantitative Aptitude - Arithmetic Ability Questions

In the following question, four groups of three numbers are given. In each group the second and third number are related to the first number by a Logic/Rule/Relation.Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

Triangle PQR is such that PQ = 9 cm, QR = 6 cm, PR = 7.5 cm and triangle PQR is similar to triangle XYZ. If XY = 18 cm, find the value of YZ.

Three angles of a quadrilateral are 60°,90°and 100°. Then the fourth angle of the quadrilateral is

When a number is divided by 63 the remainder is obtained as 26. What will be the remainder when the number is divided by 3?

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

Atul and Binay together complete a piece of work in 5 days. If Binay alone can complete the same work in 8 days, how many days Atul take to complete the same work alone?

If the volume of a cylinder is 385 cubic cm and height is 10 cm, find its radius?

Two smaller circles touch a large circle internally and pass through the center O of the larger circle. If the diameter of the bigger circle is 28 cm, thenwhat is the area of the bigger circle which is not enclosed by the two smaller circles (in sq.cm)?