[" The chances to fail in physics are "20%" and the "],[" chances to fail in mathematics are "10%" .What "],[" are the chances to fail in at least one subject? "]

The chances to fail in Physics are 20% and the chances to fail in Mathematics are 10%. What are the chances to fail in atleast one subject ?

The chances to fail in Physis are 20% and the chances to fail in Mathematics are 10%. What are the chances to fail in atleast one subject ?

In an examination of a certain class, at least 70% of the students failed in Physics, at least 72% failed in Chemistry, at least 80% failed in Mathematics and at least 85% failed in English. How many at least must have failed in all the four subjects ?

In an examination of a certain class, at least 70% of the students failed in Physics, at least 72% failed in Chemistry, at least 80% failed in Mathematics and at least 85% failed in English. How many at least must have failed in all the four subjects ?

In an examination 30% of the students failed in Physics, 25% in Mathematics and 12% in both Physics and Mathematics. A student is selected at random. Find the probability that the student has failed in Physics, if it is known that he has failed in Mathematics. (ii) the student has failed at least one of the two subjects (ii) the student has passed at least one of the two subjects (iv) the student has passed in Mathematics if he failed in Physics.

In an examination of a certain class,at least 70% of the students failed in Physics,at least 72% failed in Chemistry,at least 80% failed in Mathematics and at least 85% failed in English.How many at least must have failed in all the four subjects?

In a college 30 % students fail in physics , 25 % fail in mathematics and 10 % fail in both subjects .One student is chosen at random . The probability that she fails in physics if she has failed in mathematics is