In a conference attended by $550$ delegates tea and coffee are served. The number of delegates who drink tea is $400$ and the number of delegents who drink tea only is $200$. Find $\left(a\right)$ how many of them drink coffee,
$\left(b\right)$ how many drink coffee only.

In the pervious question ,If the number of employees in the office is 150 ,the find the number of employees who like only tea.

In a group of 52 persons, 16 drinks tea but not coffee and 33 drink tea.
Find (i) how many drink tea and coffee both,
(ii) how many drink coffee but not tea.

If $X$ = {set of children liking football} then $X\text{'}$ represents?

In a group of 50 persons, 14 drink tea but not coffee and 30 drink tea. Find: How many drink tea and coffee both How many drink coffee but tea.

In a group of 52 persons, 16 drink tea but not coffee and 33 drink tea. Then, the number of person who drink tea and coffee both

In a group of 52 persons, 16 drink tea but not coffee and 33 drink tea. Then, the number of person who drink tea and coffee both

60 employees in an office were asked about their preference for tea and coffee. It was observed that for every 3 people who prefer tea, there are 2 who prefer coffee. For every 6 people who prefer tea, there are 2 who drink both of tea and coffee. For every 6 people who prefer tea, there are 2 who drink both of tea and coffee. The number of people who drink both is the same as those wo drink neither. How many people drink both tea adn coffee?

In a group of 50 persons , 14 dringk tea but not coffe and 30 drink tea .Then find numberof persons who drink tea and coffe both .

In a group of 52 persons, 16 drink tea but not coffee and 33 drink tea. Then, the number of persons who drink coffee but not tea, is

In a group of $45$ persons,$25$ drink tea but not coffee,while $32$ drink tea.How many persons drink coffee but not tea?