Kamal and Monika appeared for an interview for two vacancies. The probability of Kamal's selection is $\frac{1}{3}$ and that of Monika's selection is $\frac{1}{5}$. Find the probability that both of them will be selected.

Kamal and Monika appeared for an interview for two vacancies. The probability of Kamal's selection is $\frac{1}{3}$ and that of Monika's selection is $\frac{1}{5}$. Find the probability that none of them will be selected.

Kamal and Monica appeared for an interview for two vacancies. The probability of kamal's selection is $\frac{1}{3}$ and that of monica's selection is $\frac{1}{5}$. Find the probability that at least one of them will be selected.

Kamal and Monika appeared for an interview for two vacancies. The probability of Kamal's selection is $\frac{1}{3}$ and that of Monika's selection is $\frac{1}{5}$. Find the probability that only one of them will be selected.