Quantitative Aptitude - Arithmetic Ability Questions

The total surface area of a cube is 181.5 cm². Find its side (in cm).

Average age of 5 students of a school is 14 years. The average age of students and their Mathematics and science teachers is 30 years. If the age of science teacher is 6 years more than the age of Mathematics teacher, then what is the age (in years) of Mathematics teacher?

The denominator of a rational number exceeds its numerator by 10. If the numerator is increased by 4 and the denominator is reduced by3, the number obtained is 5/6. The original rational number is

If the circum radius of the equilateral triangle is 12 cm then what is the value of in radius (in cm) of the triangle?

If the diameter of the two circles is 6 units and 10 units and a centre distance of 8 units. Calculate the number of common tangents that can be drawn to both the circle.

If the lengths of the two parallel sides of a trapezium are 4 cm and 6 cm and its area is 25 cm². Find the distance between its parallel sides (in cm).

The perimeter and the breadth of a rectangle are 68 cm and 10 cm respectively. Calculate the length of its diagonal (in cm).

O is the center of the circle and two tangents are drawn from a point P to this circle at points A and B. If ∠AOP = 50°, then what is the value (in degrees) of ∠APB?