Quantitative Aptitude - Arithmetic Ability Questions

In what ratio must a mixture of 11% sugar strength be mixed with that of 25% sugar strength so as to get a new mixture of 13% sugar strength?

Simple interest on a sum for 10 years is equal to 5% of the principal. In how many years interest will be equal to the principal?

What is the total surface area (in sq cm) of a hollow cylinder open at both ends, if its length is 22 cm, external radius is 7 cm and thickness is 1 cm? (Take π = 22/7)

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?

Three sides of a triangle are 5 cm, 9 cm and x cm. The minimum integral value of x is

If 2x - 6 ≤ x - 3 and 1+3x < 4x + 4, then x can take which of the following values?

The slope of the line passing through the points (2,-1) and (x,5) is -1. Find x?

If 2x -­ 3 ≤ 5 + x and 5 -­ x < 1 + 5x; then x can take which of the following values?