Quantitative Aptitude - Arithmetic Ability Questions

If a + b = 3 and ab = -4, then what is the value of a3 + b3?

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 xa+b+1=xa-b+a-ba+b, then x is equal to

In a class test, a student scored 22 marks out of 25 marks. The students marks in % is :

If L : M = 3 : 5 and M : N = 2 : 3, then N : L = ?

A sells a watch to B and makes a loss of 12%. B makes a profit of 12.5% by selling the watch to C. If A sells the watch to B at the cost of which C purchased it, then the percentage of loss or profit of A will be,

Find the square root of 1485961

A car moving in the morning fog passes a man walking at 4km/h. in the same direction. The man can see the car for 3 minutes and visibility is upto a distance of 130m. The speed of the car is :