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The probability that a student will pass the final examination in both English and Hindi is 0.5 and the probability of passing neither is 0.1. If the probability of passing the English examination is 0.75. What is the probability of passing the Hindi examination?

In an examination hall there are four rows of chairs. Each row has 8 chairs one behind the other. There are two classes sitting for the examination with 16 students in each class. It is desired that i each row, all students belong to the same class and that no two adjacent row are allotted to the same class. In how many ways can these 32 students be seated?

How many times divisions will occur in an isolated tip cell to form 128 cells ?

In a certain examination , the number of candidates who appeared in the examination is 1000 out of which 650 appeared in English and 200 appeared in both English and Hindi . Find The number of candidates who offered paper in Hindi (ii) The number of candidates who offered paper in English only.

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.(i) 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?)(ii) How many more marks were obtained by the student in Mathematics than in Hindi?(iii) Examine whether the sum of the marks obtained in Social Science and Mathematics is more than that in Science and Hindi (Hint: Just study the central angles).

In a certain examination, the candidates can offer papers in English or Hindi or both the subjects. The number of candidates who appeared in the examination is 1000 of whom 650 appeared in English and 200 both in English and Hindi. (i) Hindi , (ii) English only, (iii) Hindi only

How many times will the process of mitosis occur in the formation of 256 cells in a root tip from a single cell?

The marks obtained by a student in his annual examination in various subjects are given below: {:("Subject","Hindi","Mathematics","English","Science","S.Studies"),("Marks obtained",64,40,52,80,36):} Represent the above data by a bar graph.

In a group of 500 people, 350 speak Hindi and 300 speak English. It is given that each person speaks at least one language. (i) How many people can speak both Hindi and English? (ii) How many people can speak Hindi only? (iii) How many people can speak English only?