The following table gives the marks obtained by six students in six different subjects in an examination. The maximum marks for each subject are given in the brackets. Answer the questions that follow.
Question: 1
What is the average of total marks obtained by Aman, Kartik, Mukesh and Lokesh, in all subjects?
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When dealing with table-based questions, it's often helpful to calculate row totals and column totals at the beginning if multiple questions might use them. This saves time on repeated calculations.
What percentage is the total marks obtained by Lokesh and Sumit in Hindi, English and Maths of the total marks obtained by Aman and Kartik in Economy, Accountancy and Geography (correct to one decimal place)?
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For complex percentage questions, break the problem into finding the numerator and denominator separately. This reduces the chance of calculation errors.
Find the ratio of total percentage marks obtained by Sumit and Sandhya in Hindi, English and Maths.
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When asked for a ratio of percentages where the base (total maximum marks) is the same for both quantities, you can simply find the ratio of the obtained scores. This shortcut saves the step of calculating individual percentages.
What is the difference of the total marks obtained in all subjects by Sumit and Mukesh?
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Always check if any required calculations have already been performed for previous questions in the same data set. Reusing results like total scores can save valuable time during an exam.