Quantitative Aptitude - Arithmetic Ability Questions

Find the area (in cm²) of a semi-circle of radius 35 cm.

What is the third proportional to 9 and 15?

If 3.352 -­ (9.759 -­ x ) -­ 19.64 = 7.052, then what is the value of x?

If in a triangle ABC, Sin A = Cos B then the value of Cos C is

If a+1b = 1 and b+1c = 1 then c+1a = ?

The compound interest earned in two years at 12% per annum is Rs 10176. What is the sum (in Rs) invested?

In a mixture, water and milk are in the ratio of 3 : 5. In the second mixture, the ratio of water and milk is 9 : 11. If these two mixtures be mixed to form anew mixture in which water and milk are in ratio 5 : 7, then what is the ratio of these two mixtures in the new mixture?

BE and CF are two altitudes of a triangle ABC. If AB = 6 cm , AC = 5 cm and CF = 4 cm , then the length of BE is