If student on securing 80% of the total marks scored 720 marks, then the marks scored by the student securing 90% of the total marks is:

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770

810

900

990

answer is B.

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Detailed Solution

Concept- To solve this question, we will assume the total marks to be “x”. Then, we will calculate the value of x by forming a linear equation of a single variable based on the data and condition provided in the question statement and solving the same for x. Finally, we will calculate our desired answer from x.
Given, student on securing 80% of the total marks scored 720 marks, i.e.,
Question Image

Then, the marks scored by the student securing 90% of the total marks will be,
Question Image

Hence, the correct answer is 2) .

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