Question
Piyush secures 90%, 80%, 60% and 50% marks in test papers
with 120, 100, 120 and 140, respectively as maximum marks. The percentage of his aggregate is:Solution
Marks secured by Piyush = [(90/100) ×  120] + [(80/100) ×  100] + [(60/100) ×  120] + [(50/100) ×  140]  = (108 + 80 + 72 + 70) = 330  ∴ Required percentage = [330/(120 + 100 + 120 + 140)] ×  100 %  = (330/480) ×  100% = 68.75%
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