Quantitative Aptitude - Arithmetic Ability Questions

A right-angled triangle ABC is right-angled at B, and tan A = 4/3. If AC = 25 cm, the length of BC is

The height of a tower is 50√3 m. The angle of elevation of a tower from a distance 50 m from its feet is

The price of a chair is Rs. 500. It has been sold at two succesive discounts of 10% each. What is its selling price?

The least six digit number which is a perfect square is

A hollow hemispherical bowl is made of silver with its outer radius 8 cm and inner radius 4 cm respectively. The bowl is melted to form a solid right circular cone of radius 8 cm. The height of the cone formed is

If cos(A-B) - cos(A+B) = x, then the value of x is

Two fractions are such that their product is ­9/10 and sum is ­13/40. What are the two fractions.

The amount of extension in a spring is proportional to the weight hung on it. If the weight of 5 kgs produces an extension of 0.4 cm, what weight would produce an extension of 5cm?