Quantitative Aptitude - Arithmetic Ability Questions

What is the slope of the line, perpendicular to the line 3x - 6y = 4?

For triangle PQR, what is the equation of altitude PS if co­ordinates of P, Q and R are (5,1), (0,­4) and (­2,3) respectively?

If x2+1x2-6, then find the value of 2x(x-1)x3-x2-x+1

If the measures of the angles of a triangle are in the ratio. 1:2:3 and if the length of the smallest side of the triangle is 10cm, then the length of the longest side is

If one angle of a triangle is equal to half the sum of the other two equal angles, then the triangle is

A and B can do a piece of work in 72 days. B and C can do it in 120 days and A and C can do it in 90 days. A alone can do it in:

If the sum of squares of two real numbers is 41 and their sum is 9. Then the sum of cubes of these two numbers is

What is the value of 9991 x 10009?