Difficulty: Easy
Correct Answer: 87.2%
Explanation:
Introduction / Context:
Compute the total obtained marks over the total maximum marks and convert to a percentage. All subjects have equal maximum marks, simplifying the calculation.
Given Data / Assumptions:
Concept / Approach:
Total obtained = sum of individual scores. Total maximum = 5 * 50 = 250. Percentage = (obtained / maximum) * 100%.
Step-by-Step Solution:
Verification / Alternative check:
10% of 250 is 25; subtracting 7.8 from 100 gives 92.2? That route is error-prone; stick to direct fraction 218/250 = 0.872.
Why Other Options Are Wrong:
75% or 78% underestimate; 56.4% mis-sums marks.
Common Pitfalls:
Arithmetic errors when summing or dividing by 250; forgetting each subject has the same maximum.
Final Answer:
87.2%
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