Quantitative Aptitude - Arithmetic Ability Questions

The mean of marks secured by 60 students in division A of class X is 66, 45 students of division B is 62 and that of 75 students of division C is 60. Find the mean of marks of the students of three divisions of Class X.

Deepti bought a set of cups for Rs. 175, but then had to sell it later to clear old stocks for Rs. 161. What is the percentage of loss that she had to incur?

4*(-­0.1(5.5 + 8.5)) of 0.5 = ?

What is the slope of the line parallel to the line passing through the points (-2, -1) and (4, -3)?

The radius of a sphere is 6 cm. It is melted and drawn into a wire of radius 0.2 cm. The length of the wire is

Find the unit digit in the given product (4211)102 x (361)52.

If sinC + sinD =X, then the value of X is?

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