Quantitative Aptitude - Arithmetic Ability Questions

What will be the net discount (in %) of two successive discounts of 15% and 35%?

A person crosses a 900 metres wide road in 120 seconds. What is his speed (in km/hr)?

Akash is 3 times as good a workman as Baldev and therefore is able to finish a job in 40 days less than Baldev. Working together, they can finish it in _____.

Find the curved surface area (in cm²) of a hemisphere of diameter 28 cm

The point of intersection of all the three medians of a triangle is called its

40 men took a dip in a pool 30 m long and 25 m broad. If the average water displaced by a man is 5 cub.m, then what will be the rise (in cm) in level of the pool?

The sum of the ages of father and a son presently is 70 years. After 10 years, the son's age is exactly half that of the father. What are their ages now?

If Mohan purchase 13 articles for Rs 12 and sells all the articles at the rate of 12 articles for Rs 13, then what will be the profit percentage?