Quantitative Aptitude - Arithmetic Ability Questions

If a + b + c + d = 4, then the value of 1(1-a)(1-b)(1-c) + 1(1-b)(1-c)(1-d) + 1(1-c)(1-d)(1-a) + 1(1-d)(1-a)(1-b)

If a + b = 8 and ab =15, then a3 + b3 is

If (tanA ­- tanB)/(1 + tanAtanB) = x, then the value of x is

Find the value of 491321973

What is the reflection of the point (-4, 3) in the line x = -2?

The total surface area of a hemisphere is 462 sq cm, what is its curved surface area? (Take π = 22/7)

Incentre of Δ ABC is I. ∠ABC = 90° and ∠ACB = 70°. ∠AIC is

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