72% of 25 students got good marks in Mat...

72% of 25 students got good marks in Mathematics, then how many people did not score good marks?

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72% of 25 students are good in Hindi, how many are not good in Hindi?

If 10 out of 30 students scored below 75% marks in a test. Find the ratio of student scored below 75% marks to the student scored 75% and above marks.

If 9 out of 24 students scored below 75% marks in a test. Find the ratio of student scored below. 75% marks to. the student scored 75% and above marks.

In a class test, the sum of Moulika's marks in Mathematics and English is 30. If she got 2 marks more in Mathematics and 3 marks less in English, the product of her marks would have been 210. Find her marks in the two subjects.

In a class test, the sum of Moulika’s marks in Mathematics and English is 30. If she got 2 marks more in Mathematics and 3 marks less in English, the product of her marks would have been 210. Find her marks in the two subjects.

In a class test the sum of Kishore's marks in Mathematics and English is 30. If he got 2 marks more in Mathematics an 3 marks less in English. The product of his marks would have been 210. Find his marks.

In a class test, the sum of the marks obtained by Ravi in Mathematics and Science is 28. Had he got 3 marks more in Mathematics and 4 marks less in Science, the product of his marks would have been 180. Find his marks in the two subjects.

All the student of a class performed poorly in Mathematics. The teacher decided to give grace marks of 10 to each of the student. Which of the following statistical measures will not change even after the grace marks were given?

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