A trader allows a trade of 20% and a cash discount of % on the marked price of the goods and gets a net gain of 20% of the cost. By how much above the cost should the goods be marked for the sale? 

The line graph shows the number of vacancies of accountants in a certain company. Study the diagram and answer the following questions.

By what percent does the vacancies got increased in year 2016 from 2011?

The volume of a solid right circular cone is 600 π cm³, and the diameter of its base is 30 cm. The total surface area (in cm²) of the cone is:

Triangle PQR is inscribed in the circle whose radius is 14 cm . If PQ is the diameter of the circle and PR =10 cm , then what is the area of the triangle ? 

ABCD is a rhombus whose one angle is 60°.Find the ratio of the lengths of its diagonal?

The following table shows the number of units of product produced and sold by a company over the course of six years.

The number of units of product sold in 2016 is approximately what percent more than the average number of units produced from 2012 to 2016?

1261 in 3 years at the rate of 5 percent annual interest on a sum of money. Interest is received by compound . money will be

Two students appeared for an examination. One student who scored 20 marks more than the other, his score was 60 % of the sum of their marks. What was his score?