Quantitative Aptitude - Arithmetic Ability Questions

The ratio of present ages of Ranjini and Shahid is 5:4. After 13 years the ratio of their ages will be 6:5. What is Ranjini's present age?

10 identical solid spherical balls of radius 3 cm are melted to form a single sphere. In this process 20% of solid is wasted. What is the radius (in cm) of the bigger sphere?

What is the quotient when 7251 is divided by 66?

Find two numbers such that their mean proportion is 8 and third proportion is 64.

The cash difference between the selling price of an article at a profit of 2% and 18% is Rs. 3. The ratio of two selling prices is

Simplify : -21973 × -1253 ÷ 275123

Find the area (in cm²) of a semi-circle of radius 35 cm.

The orthocentre of an obtuse­angled triangle lies