In a school there are 2000 students. On January 2nd, all the students were present in the school except 4% of the boys and on January 3rd, all the students are present in the school except 28/3% of the girls, but on both the days' number of students present in the school, were same. The number of girls in the school is –

By reducing the circumference of a circle by 50 percent, by what percentage will its area decrease?

In an examination in which full marks were 500. A got 25% more than C, C got 20% less than D. If A got 360 marks. What percentage of full marks was obtained by D ? 

In a factory, the production of cycles rose to 48,400 from 40,000 in 2 years. The rate of growth per annum is?

A number if required by 25% becomes 225. By what percent should be increased so that it becomes 375?

The prices of two articles are in the ratio 3 : 2 respectively. The price of the first article is increased by 40% and that of the second article is decreased by x%. If the new ratio of both the articles is : 7 : 3 then what is the value of x?

Two students appeared for an examination. One of them secured 9 marks more than the other and his marks were 56 % of the sum of their marks. The marks obtained by them are 

A retailer gets a discount of 40 % on the printed price of an article. The retailer sells it at the printed price. His gain percent is