What is the probability of getting a doublet when two dice are thrown?

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?

Two dice are thrown together. The probability that at least one will show its digit $6$ is

When two dice are thrown,the probability of getting a prime number on one die and a composite number on the other is

If two integers are chosen at random,what is the probability that their product is an even integer?

One die and a coin (both unbiased) are tossed simultaneously. The probability of getting $5$ on the top of the die and tail on the coin is