To receive Grade A in a course, one must obtain an average of 90 marks or more in five examinations (each of 100 marks). If Sunita s marks in first four examinations are 87, 92, 94 and 95, find minimum marks that Sunita must obtain m fifth examin

To receive grade A in a cource, one must obtain an average of 90 marks or more in five papers each of 100 marks. If Shikha scored 87, 95, 92 and 94 marks in first four papers find the minimum marks that she must score in the last paper to get grade A in the course.

Anita has obtained 520 marks in an examination. If she obtained 80% of the total marks, find the total marks.

Anita has obtained 450 marks in an examination. If she obtained 75% of the total marks, find the total marks.

A student obtained 62 and 48 marks in the first and secound examinations of class XI. Find the minimum marks he should get in annul examination to have an average of at least 60 marks.

The marks obtained (out of 100) by 12 students in an examination are 74, 96, 87, 65, 99, 82, 76, 92, 66, 75, 85, 90 Find the median marks.

Amar obtained 410 marks out of 500 in an examination while his friend Rajiv gets 536 marks out of 600. Find whose performance is better.

A student obtained 60, 75 and 85 marks respectively in three monthly examinations in Physics and 95 marks in the final examination. The three monthly examinations are of equal weightage whereas the final examination is weighted twice as much as a monthly examination. His average marks in Physics are (a) 78.75 (b) 79 (c) 82 (d) 85

Given below is the distribution of marks obtained by 50 students in a class test : If 70% students pass the test , find the minimum marks needed by a students to pass the examination.

Ravi obtained 70 and 75 marks in first two unit tests. Find the number of minimum marks he should get in the third test to have an average of at least 60 marks.

A student obtained 60, 62, 64 and 66 marks in 4 subjects in an examination. Find the minimum marks he should get in 5th subject to have an average of at least 65 marks.