Quantitative Aptitude - Arithmetic Ability Questions

Akka can bake 100 cakes in 20 hours, Akka and Tai together can bake 75 cakes in 10 hours. How many cakes Tai can bake in 20 hours?

Lokesh starts a business with Rs 240000. After 3 months Vishal joins him with Rs 210000. At the end of the year what will be the ratio of their profit?

In an army selection process, the ratio of selected to unselected was 6:1. If 90 less had applied and 30 less selected, the ratio of selected to unselected would have been 8:1. How many candidates had applied for the process?

If cot2A = x, then x is

If x = √2+1, then the value of x4-1/x4

Find k, if the line 4x - y = 1 is perpendicular to the line 5x - ky = 2?

If x + 1/x = √13, then 3x(x2-1) equal to

Profit of Rs 936000 has to be divided among three partners Anirudhha, Balwant and Charudatta in the ratio 2:3:5. How much does Charudatta get?