Quantitative Aptitude - Arithmetic Ability Questions

A and B have their annual average income Rs. 80,000.
B and C have their annual average income Rs. 75,000.
C and A have their annual average income Rs. 78,000.

The annual income of A is ?

The value of Cot17°Cot73°Cos222° + 1Cot17°Sec268° is

The area of a right angled triangle ABC, right angled at B, is 46 sq units. A median is drawn from A to BC which intersects at D. Find the area (in sq. units)of triangle ABD.

What is the altitude of an equilateral triangle whose side is 12 cm?

The marked price of a door is Rs 1400. It is sold at a discount of 28%. If the cost price of the door is Rs 700, then what is the profit (in Rs)?

The value of cos220° + cos270°is

If X+Y=3,XY=2, find the value of X3-Y3

Point A divides segment BC in the ratio 5:1. Co-ordinates of B are (6 ,-4) and C are (0,8). What are the co-ordinates of point A?