Quantitative Aptitude - Arithmetic Ability Questions

The ratio 1 : 5 can be expressed in decimal as

A can complete a work in 20 days and B can complete the same work in 25 days. If both of them work together, then in 3 days what percent of the total work will be completed?

Select the odd word/letters/number/number pair from the given alternatives.

Two whole numbers are such that the square of first number exceeds the second by 112 and the ratio of the numbers is 4:3. What is thevalue of smaller number?

The area of a circle is 616 sq.m. Find its diameter.

The price of an article is cut by 9%, to restore to its original value, the new price must be increased by

If the population of a town increases by 25% in the first year and increases by 36% in the second year, then what is the average rate (in percentage)of increase in the population?

The point R(a,b) is first reflected in origin to R1 and R1 is reflected in X-axis to (-5,1). The co-ordinates of point R are?