Quantitative Aptitude - Arithmetic Ability Questions

What is the fourth proportional to 72, 168 and 150?

P alone can do a piece of work in 8 days and Q alone can do the same work in 10 days. In how many days will both together complete the same work?

A shopkeeper marks the price of his table 30% above the cost price. He allows his customers a discount of 12% on the marked price. What is the profit percentage?

In 250 litres mixture of soda and water the ratio of amount of soda to that of water is 7 : 18. In order to make this ratio 2 : 3, how many more litres of soda should be added?

To dispose of the old stocks, a person sold a tea-set for Rs. 3420, which was 43% below the cost price. In order to make a profit of 10% the seller should have sold the set for Rs. ___ more.

If the radius of a circle is increased by 21%, then its area will increase by what percent?

If the radius of a circle is increased by 31% its area increases by ______.

Simplify the equation 0.733+0.2730.732+0.272-0.73×0.27