These questions are based on the following data. Study it carefully and answer the question that follow-
In a school having 400 students boys and girls are in the ratio of 3 : 5 respectively. The students speak Hindi, English or both the languages. 12% of the boys speak only Hindi, 22% of the girls speak only English. 24% of the total students speak only Hindi and the number of boys speaking both the languages is six times the number of boys speaking only Hindi.
Number of girls speaking only Hindi is what percent of the total number of students speaking only Hindi?
What is the respective ratio between the number of boys and girls speaking both the languages?
For the following questions answer them individually
Area of the circle is 616 $$cm^{2}$$. What is the area of the rectangle? (One side of the rectangle passes through the centre of the circle)
Study the information given in each of these questions and then answer the question.
What is the percentage rise in production in 2007 from 2006? (Rounded off to two digits after decimal)
Out of the total 550 students, how many students did not prefer Maths or Economics?
Break-up of students having preference for each subject.
What is the difference (in Rs. lakhs) between the average salary and the lowest salary?