Quantitative Aptitude - Arithmetic Ability Questions

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?

The lengths of two parallel sides of a trapezium are 21 cm and 9 cm. If its height is 10 cm, then what is the area (in cm2) of the trapezium?

What is the slope of the line 2x + 3y = 12?

The height of a cone is 24 cm and the area of the base is 154 cm2 . What is the curved surface area (in cm2) of the cone?

The volume of a hemisphere is 19404 cm3. Find its diameter (in cm).

The simple interest on a sum is 7/8 of the principal for 5 years. What is the rate (in percentage) of interest per annum?

The value of √0.0144 is

Select the odd word/letters/number/number pair from the given alternatives.