2 men and 1 woman board a bus in which 5 seats are vacant. One of these five seats is reserved for ladies. A woman may or may not sit on the seat reserved for ladies but a man cannot sit on the seat reserved for ladies. In how many different ways can the five seats be occupied by these three passengers?

Ten identical particles are moving randomly inside a closed box. What is the probability that at any given point of time all the ten particles will be lying in the same half of the box?

Consider the following statements: 1. During the process of osmosis, the solvent travels from the concentrated solution to the dilute solution.

Assertion (A): All the proteins in our food are digested in small intestine only. Reason (R): The Protein digesting enzymes from pancreas are released into small intestine.

Assertion (A): Amoeba is reproduced by fission. Reason (R): All unicellular organisms are reproduced by asexual methods.

Assertion (A): The main constituent of the Liquefied Petroleum Gas is methane. Reason (R): Methane can be used directly for burning in homes and factories where it can be supplied through pipelines.

Assertion (A): The person with diabetes insipidus feels thirsty. Reason (R): A person with diabetes insipidus suffers from excess secretion of vasopressin.