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The adjoining pie chart gives the marks scored in an examination by a student in Hindi, English, Mathematics, Social Science and Science. If the total marks obtained by the students were 540, answer the following questions. (i) In which subject did the student score 105 marks? (Hint: for 540 marks, the central angle = 360°. So, for 105 marks, what is the central angle?) (ii) How many more marks were obtained by the student in Mathematics than in Hindi? (iii) Examine whether the sum of the marks obtained in Social Science and Mathematics is more than that in Science and Hindi (Hint: Just study the central angles).

The Pie-graph given here shows the number of students opting different subjects in a school. If there are a total of 720 students, then by studying the pie-graph answer the questions. The difference in the number of students studying Hindi and Sanskrit subjects is

Study the data carefully and answer the following questions. Find the ratio of total marks scored by all four students together in Hindi to total marks scored by all four students together in Science?

Study the data carefully and answer the following questions. Find the average of the marks scored by Aditya in English, Hindi and Science together?

Given bar graph shows the number of books of difference subjects kept in a library. Study it and answer the following questions : How many Hindi books are kept in the library ?

Direction: The following line graph shows the number of Peoples who are working in certain institute and speaks four different language. Study the following data and answer the following questions: If the ratio of male and female who speaks Hindi language on Monday is 7 : 3, then the number of female who speaks Hindi on Monday is what percent of the total number of people who speaks Hindi on both days?

The bar graph given below represents the circulation of newspapers in different languages in a town. Study the bar graph and answer the following questions: By how much is the circulation of newspaper in Hindi more than the newspaper in Bengali?

Given below are certain features of mouse. Read them and select why mouse is the most preferred animal for studies on gene transfer (i) Short oestrous cycle and gestation period (ii) Relatively short generation time (iii) Covenient in vitro fertilisation (iv) Production of several offspring per pregnancy