Most expensive Tea #shorts #tea

Tea has stimulant

Coffee and Tea are

Mr. Dupont is a professional tea taster. When given a high grade tea, he will identify it with probability 0.9 correctly as high grade and will mistake it for a low grade tea with probability 0.1. When given a low grade tea, he will identify it with probability 0.8 correctly as low grade tea and will mistake it for a high grade tea with probability 0.2. Suppose that Mr. Dupont is given ten unlabelled cups of tea, three with high grade and sevenwith low grade tea. He randomly picks a cup, tries the tea and solemnly says high grade tea. Find the probability that the tea he tasted was low grade tea.

Select the most appropriate meaning of the given idiom. Cup of tea

In a group of 60 persons, each takes at least one of coffee or tea. If 20 of them take tea but not coffee and 35 take tea, find the number of person who take Coffee but not tea