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In Class XI of a certain school, there are 30 students in a Mathematics class and 20 students in Biolog class. Find the number of students which are in Mathematics class or in Biology class in the following cases: (i) Two classes are conducted at the same time. (ii) Two classes are condcuted at different time and 5 students study both the subject

In a class 40% students read Mathematics,25% Biology and 15% both Mathematics and Biology.One student is selected at random. The probability that he reads Mathematics if it is known that he reads Biology is

In class XI of a school 40% of the students study Mathematics and 30% study Biology.10% of the class study both mathematics and biology.If a student is selected at random from the class,find the probability that he will be studying Mathematics or Biology or both.

In a class of 25 students,12 have taken mathematics,8 have taken mathematics,but not biology.Find thenumber of students who have taken both mathematics and biology and the number of those who havetaken biology but not mathematics.Each student has taken either mathematics.or biology or both.

NEET 2021 - Cell : Unit of Life | Introduction To Cytology By Parth Sir | English Medium

In Class XI of a school 40% of the students study Mathematics and 30% study Biology.10% of the class study both Mathematics and Biology.If a student is selected at random from the class,find the probability that he will be studying Mathematics or Biology.

Class 12 Biology | Chapter 7 | Evolution | Important Questions and Quick Revision |

In a class 40% students read Mathematics,25% Biology and 15% both Mathematics and Biology.One student is selected at random. The probability that he reads Biology if he reads Mathematics is