Quantitative Aptitude - Arithmetic Ability Questions

A fraction is greater than its reciprocal by (72)/(77). What is the fraction?

Square of (3x – 5xy) is

Three consecutive natural numbers are such that the square of the greatest is greater than the product of the other two by 16. The smallest of these numbers is

In what ratio should tea costing Rs 300/kg be mixed with tea costing Rs 200/kg so that the cost of the mixture is Rs 225/kg?

The area of a circle is 616 cm². What is its circumference (in cm).

The third proportional of two numbers 4 and 20 is

An engineering student has to secure 25% marks to pass. He gets 47 and fails by 43 marks. What are the maximum marks of the examination?

The number whose square is equal to the difference of the squares of 37 and 23 is:-