# 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 in fifth examination to get grade ‘A’ in the course.

Let us assume Sunita scored x marks in her fifth examination

Now, according to the question in order to receive A grade in the course she must have to obtain average 90 marks or more in her five examinations

= 368 + x ≥ 450

= x ≥ 450 - 368

= x ≥ 82

Hence, she must have to obtain 82 or more marks in her fifth examination

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Discussion | Miscellaneous Exercise | NCERT Chapter 6| Linear Inequalities33 mins
Interactive Quiz on Equations & inequations63 mins
Let's Play the Game of Inequalities52 mins
Concept of Linear momentum and its conservation40 mins
Lecture on inequalities involving AM & GM56 mins
Miscellaneous Interactive Quiz on Trigonometry+ Complex number+Inequalities43 mins
Check your understanding of linear momentum22 mins
Interactive quiz on inequalities involving AM and GM45 mins
Conservation of Linear Momentum, Visualize the concept (Theory + Interactive Quiz)41 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses
RELATED QUESTIONS :

A company manufactures cassettes and its cost and revenue functions for a week are and R = 2x respectively, where x is the number of cassettes produced and sold in a week. How many cassettes must be sold for the company to realize a profit?

RD Sharma - Mathematics

Solve x + 5 > 4x 10, when x ϵ R.

RS Aggarwal - Mathematics