Quantitative Aptitude - Arithmetic Ability Questions

A shopkeeper cheats to the extent of 8% while buying and selling fruits, by using tampered weights, his total gain in percentage is

In triangle ABC, ∠ABC = 15 deg. D is a point on BC such that AD = BD. What is the measure of ∠ADC (in degrees)?

The average of 7 numbers is 30. If the average of first three numbers is 25 and that of last three numbers is 35, then what is the fourth number?

If x = a + 1a, y = a - 1a ,(a>0), then the value of x4+y4-2x2y2 is

Select the odd number from the given alternatives.

If a = 5, b = 4, c = 8 then find the value of (a3 + b3 + c3 - 3abc)/(ab + bc + ca - a2 - b2 - c2)

Find the value of p if ­-3x -­ 11, x + p and 5x + 7 are in arithmetic progression.

Select the odd word from the given alternatives.