Girish scored 448 marks in an examination and was 64 marks short of 16% of maximum marks. In the same examination, his friend scored 672 marks. What is the percentage of marks scored by his friend?
21%
Girish scored 448 marks, which was 64 marks short of 16% of the maximum marks.
So 16% of the maximum equals \(448 + 64 = 512\).
Find the maximum marks: \(\text{Maximum} = \frac{512}{16\%} = \frac{512 \times 100}{16} = 3200\).
His friend scored 672 marks, so the friend's percentage is \(\frac{672}{3200} \times 100 = 21\%\).
Hence, the friend scored 21% of the maximum marks.
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