Quantitative Aptitude - Arithmetic Ability Questions

The marked price of an article is 10/7 of the cost price and the selling price of that article is 4/5 of the marked price. What is the profit percentage?

If the hour hand of a clock moves by 18 deg then by how many degrees does the minute hand move during the same time?

84% of a number is 105. The number is :

For x > 0, what is the minimum value of  x + x+22x?

If x + y + z = 22 and xy + yz + zx = 35, then what is the value of (x – y)2 + (y – z)2 + (z – x)2?

What approximate value should come in place of the question mark (?) in the following equation (Note: You are not expected to calculate the exact value)? √580×∛510+ 49.999 x 3.999=?

If 310 × 272 = 92 × 3n then the value of n is

From the four corners of a rectangular sheet of dimensions 25 cm x 20 cm, square of side 2 cm is cut off from four corners and a box is made. The volume of the box is