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 ?

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 80marks,find the range of marks he should score in the fifth paper.

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.

To receive grade 'A' in a course, one must obtain an average of 90 marks or more in five examination (each of 100 marks). If sunita's marks in the first four examination are 87,92,94 and 95 find the minimum marks that sunita must obtain in the fifth examination to get grade 'A' in the course.

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 examination to get grade A in the course.