In the first four papers each of 100 marks, Rishi got `95 ,72 ,73 ,83` marks. If he wants an average of greater than or equal to `75` marks and less than `80` marks, find the range of marks he should score in the fifth paper.

Solve the following systems of inequalities for all xinR In the first four papers each of 100 marks, Rishi got 95, 72, 73, 83 marks. If he wants an average of greater than or equal to 75 marks and less than 80 marks find the range of marks he should score in fifth paper.

In the first four examinations, each of 100 marks, Hamid got 94,72,72,84 marks. If a final average greater than or equal to 80 and less than 90 is needed to obtain a final grade B in a course, what range of marks on the fifth (last) examination will result Hamid in receiving grade B in course?

In the first four examinations, each of 100 marks, Hamid got 94,72,72,84 marks. If a final average greater than or equal to 80 and less than 90 is needed to obtain a final grade B in a course, what range of marks on the fifth (last) examination will result Hamid in receiving grade B in course?

In the first four examinations each of 100 marks, Hamid got 94,73,72,84 marks. If a final average greater than or equal to 80 and less than 90 is needed to obtain a final grade B in a course, what range of marks on the fifth(last) examination will result in Hamid receiving ''B'' in the course?

In the first four examinations, each of 100 marks, Hamid got 94,73,72, 84 marks if the final average is greater than or equal to 80 and less than 90 is needed to obtain a final B grade in a course, what range of marks in the fifth (last) examination will result in Hamid receiving 'B' in the course ?

If Ramesh score 50 marks in English and 60 marks in Math. Find out the average marks he secure.

B got 20% marks less than A. What per cent marks did A got more than B?

To obtain grade A is an examination a student must score an average of 90 marks or more in five papers each of 100 marks. If his marks in first four papers are 82,92,94 and 88, then find the minumum marks he should score in fifth paper if he wants to get grade A in the examination.