Discussion

Explanation:

The total marks obtained by Anuj in all the five subjects = $\frac{80}{100}$ × 75 + $\frac{55}{100}$ × 80 + $\frac{68}{100}$ × 100 + $\frac{66}{100}$ × 50 + $\frac{84}{100}$ × 150

= 60 + 44 + 68 + 33 + 126

= 331

Hence, the correct answer is Option A

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