Quantitative Aptitude - Arithmetic Ability Questions

The ratio of two positive numbers is 3:4. The sum of their squares is 400. What is the sum of the numbers?

In an army selection process, the ratio of selected to unselected was 3:1. If 60 less had applied and 30 less selected, the ratio of selected to unselected would have been 5:1. How many candidates had applied for the process?

 In the triangle ABC, the internal bisector of angle A meets the side BC at D. If BD=7.5 cm and BC=9 cm. Then calculate the value of AB:AC.

The two equations are 4x + 4ky-6=0 and x+6y-12=0. Find the value of k for the pair of two linear equations represents the parallel lines.

Find length of the arc whose central angle is 45° and radius of the circle is 28 cm?

If 8x/3 + [7(5 - 2x/3)]/2 = 1/2 , then what is the value of x?

What is the value of 23+5252-23 ?

Select the odd word/letters/number/number pair from the given alternatives.