A family has 108 kg of wheat for x number of weeks. If they need to use same amount of wheat for 3 more weeks, they need to cut down their weekly consumption of wheat by 3 kgs. Find value of x.

From among a group of 5 men, 4 women and 4 children, 2 individuals are selected randomly. What is the probability that exactly 1 among the chosen are children?

In 1992, the meteorological office predicted the weathers completely right for the months of february and april, and completely wrong for all the other months. What is the probability that the forecast was wrong for a given day that year?