Quantitative Aptitude - Arithmetic Ability Questions

Find the sum of interior angles of a decagon?

n an alloy, lead and tin are in the ratio of 2 : 3. In the second alloy, the ratio of same elements is 3 : 4. If equal quantities of these two alloy are mixed to forma new alloy, then what will be the ratio of these two elements in the new alloy? 

If 1 = 2, 3 = 6, 4 = 8, and + = -, what would be the value of 41 + 34 + 13 = ?

If a rod of length 208 45 is cut into equal pieces of length 23 15 then the total number of rods obtained is

If the diameter of a circle is 35 cm, then what will be its circumference (in cm)?

A number was divided in the ratio 3:2. When 8 was was added to each of the numbers the ratio changed to 7:5. The greater of the two numbers was

The effective annual rate of interest corresponding to a nominal rate of 19% per annum payable half­yearly is:

In triangle ABC, ∠ABC = 90°. BP is drawn perpendicular to AC. If ∠BAP = 50°, then what is the value (in degrees) of ∠PBC?