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 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

In a class, 40% students study mathematics, 25% study biology and 15 % study both mathematics and biology. One student is selected at random. Find the probability that (i) he studies mathematics if it is known that he studies biology (ii) he studies biology if it is known that he studies mathematics.

In a class 40% students study mathematics 25% study chemistry and 15% both mathematics and chemistry. If a student is chosen at random the probability that he studies mathematics , If it is known that he studies chemistry is

In a class 45% students read English, 30% read French and 20% read both English and French. One student is selected at random. Find the probability that he reads English, if it is known that he reads French.

In a class 45% students read English, 30% read French and 20% read both English and French. One student is selected at random find the probability that he reads French, if it is known that he reads English.

In a class , 40% students study History, 25% Civics and 15% both History and Civics. A student from the class is selected at random . The probability that he studies history, if it is known that he studies civics is

In a class of 60 students, 30 opted for Mathematics, 32 opted for Biology and 24 opted for both Mathematics and Biology. If one of these students is selected at random, find the probability that : (i) The students opted for Mathematics or Biology. (i) The students has opted neither Mathematics nor Biology. (iii) The students has opted Mathematics but not Biology.