The length of a rectangle is increased by \(16\,\frac{2}{3}\,\%\). By what approximate percentage should its breadth be decreased so that the area of the rectangle remains unchanged?
Study the given pie-cha11 and answer the question that follows. The pie-chart shows the percentage-wise distribution of teachers in a district who teach six different subjects as percentages of the total number of teachers of all the subjects taken together.
What is the ratio of the number of teachers who teach English to the number of teachers who teach Chemistry?
Select the number that will come in place of the question mark (?) in the mathematical statement.