A student scored 85, 90, 78, and 92 on four tests. What score must they achieve on the fifth test to have an average of 88?
["How to Calculate the Required Score to Achieve an Average of 88 After Five Tests\nWith Real Example: A Student Scored 85, 90, 78, and 92—What’s Needed on the Fifth Test?", "---", "Achieving a target average is a common goal for students aiming to improve their academic performance. Whether you're preparing for exams or reviewing progress, understanding how to calculate the needed score on a final test can guide your study efforts.", "### The Scenario: Current Scores\nIn this example, a student has completed four tests with the following scores:\n- Test 1: 85\n- Test 2: 90\n- Test 3: 78\n- Test 4: 92", "The student is now preparing for a fifth test and wants to know what score they must achieve to reach an average of 88 across all five tests.", "---", "### Step-by-Step Calculation", "To find the required score on the fifth test, follow these steps:", "1. Add the known test scores:\n ( 85 + 90 + 78 + 92 = 345 )", "2. Let ( x ) be the unknown score on the fifth test.\n The average of five tests is calculated by dividing the total score by 5:\n [\n \ ext{Average} = \frac{345 + x}{5}\n ]", "3. Set the average equal to 88 and solve for ( x ):\n [\n \frac{345 + x}{5} = 88\n ]", "4. Multiply both sides by 5:\n [\n 345 + x = 440\n ]", "5. Subtract 345 from both sides:\n [\n x = 440 - 345 = 95\n ]", "---", "### Conclusion: Success Score on the Fifth Test", "To achieve an average of 88 across five tests, the student must score 95 on the fifth test.", "This method applies universally—by calculating your current total and applying the target average formula, you can quickly determine the exact score needed on the final assessment.", "---", "Keywords for SEO Optimization:\n- How to calculate average test score\n- Student average score calculation\n- What score needed for 88 average\n- Final test score required\n- Calculating average grade", "By mastering basic algebra and average formulas, students can confidently plan their academic outcomes and set meaningful goals.", "---", "Whether you're a student, parent, or educator, knowing how to determine required scores ensures focused effort and success."]
