Quantitative Aptitude - Arithmetic Ability Questions

 In the triangle ABC, the internal bisector of angle A meets the side BC at D. If BD=7.5 cm and BC=9 cm. Then calculate the value of AB:AC.

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

If 1/√(1+tan2A) = x, then value of x is

The average of 8 consecutive integers is 23/2. What is the average of first three integers?

If a cone is divided into two parts by drawing a plane through the midpoints of its axis, then the ratio of the volume of the 2 parts of the cone is

The mean of 10 observations is 17. One more observation is included and the new mean becomes 16. The 11th observation is

In an alloy, aluminium and tin are in the ratio of 4 : 5. In the second alloy, the ratio of same elements is 4 : 7. If equal quantities of these two alloys be mixed to form a new alloy, then what will be the ratio of both of these elements in the new alloy?

Point P (8 , 5) is the midpoint of segment AB. Co-ordinates of A are (5, y) and B are (x, -3). What is the value of x?