A box contains 10 red ball, 6 green ball if 2 balls are drawn randomly what is the probability of getting non-green ball?

A shopkeeper bought goods for Rs. 2025. He sold $$ {1\over 5}$$ th of it at 20% profit and the remaining at the profit of 5%, the profit per cent on the whole is

The midpoints of AB and AC of a triangle ABC are X and Y respectively. If BC + XY = 12 units, then BC – XY is:

A person bought some articles at the rate of 5 per rupee and the same number at the rate of 4 per rupee. He mixed both the types and sold at the rate of 9 for 2 rupees. In this business he suffered a loss of Rs. 3. The total number of articles bought by him was 

lf p + m = 6 and p³ + m³ = 72, then the value of pm is: 

Directions:  In the following two equations questions numbered (I) and (II) are given. You have to solve both equations and
Give answer
(a) If x > y
(b) If x ≥ y
(c) If y > x
(d) If y ≥ x
(e) If x = y or no relation can be established

$$ {I.x^{2}-17x-84=0}$$
$$ {II.y^{2}+4y-117=0}$$

If ' n ' be any natural number , then by which number ( n⁴-n ) is always divisible ? 

In equation $$ {x^{2}-24x+k=0}$$ the first root is x=2 then find out  the second root of equation.