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

A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table : : Find the probability that a student obtained less than 20 marks in the mathematics test.

A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table : : Find the probability that a student obtained less than 20% in the mathematics test.

75 students secured first division marks either in English or in Mathematics or in both. If 50 of them secured first division in Mathematics and 10 in both English and Mathematics, then how many got first division in English ?

In a class test (+3) marks are given for every correct answer and (-2) marks are given for every incorrect answer and no marks fornot attempting any question. Mohini scores -5 marks in this test, though she has got 7 correct answers. How many questions has she attempted incorrectly?

Form the pair of linear equations In the following problems and find their solutions (if they exist) by any algebraic method. :- Yash scored 40 marks in a test, getting 3 marks for each right answer and losing 1 mark for each wrong answer. Had 4 marks been awarded for each correct answer and 2 marks been deducted for each incorrect answer, then Yash would have scored 50 marks. How many questions were there in the test ?

A teacher analyses the performance of two sections of students in a mathematics test of 100 marks given in the following table : : Find the probability that a student obtained 60 or above

The adjoining pie chart gives the marks scored in an examination by a student in Hindi, English, Mathematics, Social Science and Science. If the total marks obtained by the students were 540, answer the following questions. In which subject did the student score 105 marks? (Hint: for 540 marks, the central angle = 360^@ So, for 105 marks, what is the central angle?)