Quantitative Aptitude - Arithmetic Ability Questions

If the zeroes of the polynomial x2 - ax + b are 3 and 4, then 'a' and 'b' are respectively equal to

In a class consisting of boys and girls, there are 45 students. If three fifth of the students are boys, find the number of boys in the class.

A team of 8 persons joins in a shooting competition. The best marksman scored 85 points. If he had scored 92 points, the average score for the team would have been 84. The number of points the team scored was

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 radius of the cylinder is decreased by 20%, then by how much percent the height must be increased, so that the volume of the cylinder remains same?

A cylindrical vessel of radius 8 cm is partially filled with water. By how much will the water level rise if a sphere of radius 7 cm is completely immersed in this water?

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

The simplification value of 735+2-552+7+227+5 is