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In a class, 15% of total number of students failed in Science, 5% of total number of students failed in Maths and 10% of total number of students failed in both.How much percentage of students passed in both Maths and Science?Options70%50%47%89%

Question

In a class, 15% of total number of students failed in Science, 5% of total number of students failed in Maths and 10% of total number of students failed in both.How much percentage of students passed in both Maths and Science?Options70%50%47%89%

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Solution

To solve this problem, we need to add the percentages of students who failed in Science and Maths, and then subtract the percentage of students who failed in both, because they were counted twice in the first step.

Here's the step-by-step calculation:

  1. Add the percentage of students who failed in Science and Maths: 15% + 5% = 20%
  2. Subtract the percentage of students who failed in both subjects: 20% - 10% = 10%
  3. Since the total percentage of students is 100%, the percentage of students who passed in both subjects is: 100% - 10% = 90%

So, the correct answer is 90%. However, this option is not given in your list. Please check the question or the options again.

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