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Out of three exams, Ravi had scored 70 and 75 marks in two examinations. A student can be placed in Grade A is the average score of three exams will be at least 73 and at most 80. Ravi is placed in Grade A. What is the maximum mark that he could have scored in the third examinations ?

The bar graph shows average marks scored in a 100 marks History exam by students of 7 divisions of Standard x. Study the diagram and answer the following questions. Which division scored the second lowest marks ?

The bar graph shows average marks scored in a 100 marks Science exam by student of 7 divisions of Standard X. Study the diagram and answer the following questions. Which division scored the second lowest marks?