Quantitative Aptitude - Arithmetic Ability Questions

If there are four lines in a plane, then what cannot be the number of points of intersection of these lines?

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

The numerator of a fraction is multiple of two numbers. One of the numbers is greater than the other by 2. The greater number is smaller than the denominator by 4. If the denominator 7+C (C > -7) is a constant, then the minimum value of the fraction is

Slit 69 into three parts such that they are in A.P. and the product of their smaller parts is 483.

How much does one need to add to 2/3 to obtain 3/2?

A man buys 10 oranges for Rs. 3 and sells 8 for Rs. 3. Calculate his gain percent.

A boy crosses a 300 metres wide road in 30 seconds. What is his speed (in km/hr)?

If curved surface area of a cylinder is 1320 sq cm and height is 10 cm, find its radius?