Quantitative Aptitude - Arithmetic Ability Questions

If cot 60° + cosec 60° = x, then the value of x is

The co-ordinates of the centroid of a triangle ABC are (1 , -4). What are the co-ordinates of vertex C if co-ordinates of A and B are (3 , -4) and (0 , 5) respectively?

A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km/hr) of the boat in still water?

What is the value of [2 sin (45 + θ) sin (45 – θ)]/cos 2θ?

If cos 240° = x, then value of x is

A circle and a square have same area. The ratio of the side of the square to the radius of the circle will be:

5% more is gained by selling a watch for Rs. 350 than by selling it for Rs. 340. The cost price of the watch is

Working 10 hours a day, Aman can complete a piece of work in 18 days. How many hours a day should he work so as to finish the work in 15 days?