Quantitative Aptitude - Arithmetic Ability Questions

The diagonal of a square is equal to the side of an equilateral triangle. If the area of the square is 15√3 sq cm, what is the area of the equilateral triangle?

Δ ABC is right angled at B. If m∠A = 30°. What is the length (in cm) of AB, if AC = 8 cm?

A right circular cylinder is partially filled with water. Two iron spherical balls are completely immersed in the water so that the height of the water in the cylinder rises by 4 cm. If the radius of one ball is half of the other and the diameter of the cylinder is 18 cm, then the radii of the spherical balls are

In a class when a test is conducted, mean of 25 students marks is 60 if mean of first 13 students marks is 70 and mean of last 13 students marks is 50 find the marks of the middle student when arranged in the ascending order.

Aparna changes the marked price of an item to 50% above its C.P. What % of discount allowed in approximately to gain 10%?

The slope of the line passing through the points (-5,1) and (x,-4) is -5/8. Find x.

Sahil sold an item for Rs. 280 at a loss of 20%. The cost price of the item was

Find the total surface area (in cm²) of a right circular cylinder of diameter 42 cm and height 14 cm