
### Instruction: help me answer this question To receive a 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 the first four examinations are 87, 92, 94 and 95, find the minimum marks that Sunita must obtain in the fifth examination to get a Grade ‘A’ in the course., think step by step
### Assistant: To find the minimum marks, we need to first find the total marks of five examinations and divide it by 5. After substituting Sunita’s marks in the first four examinations and simplification, we get x ≥ 82. , The answer is Sunita must obtain 82 or more marks in her fifth examination.
