Quantitative Aptitude - Arithmetic Ability Questions

The number of pupils of a class is 55. The ratio of the number of male pupils to the number of female pupils is 5: 6. The number of female pupils is

The radius of a sphere and hemisphere are same. The ratio of their total surface area is

5 year hence, ratio of ages of A and B will be 7 : 5 and difference between their ages will be 4 years. What are present ages (in years) of A and B
respectively?

In the following question, select the odd letter from the given alternatives.

The flight fare between two cities is increased in the ratio 9:11. What is the increase (in Rs) in the fare, if the original fare was Rs. 18,000?

If Tan θ = 4/3, then what is the value of Sin θ?

If sin - 4π/3 = x, then the value of x is