Aclass survey found that 29 students watched television on monday, 24 on tuesday, and 25 on wednesday. of those who watched tv on only one of these days, 13 choose monday, 9 chose tuesday, and 10 chose wednesday. every student watched tv on at least one of these days, and 12 students watched tv on all three days. if 14 students watched tv on both monday and tuesday, how many students were there in the class

There were 49 students in the class

Step-by-step explanation:

To solve this problem, we must build the Venn's Diagram of this set.

I am going to say that:

-The set A represents the students that watched TV on Monday

-The set B represents the student that watched TV on Tuesday.

-The set C represents the students that watched TV on Wednesday.

We have that:

In which a is the number of students that only watched TV on Monday, is the number of adults that watched TV both on Monday and Tuesday, is the number of students that watched TV both on Monday and Wednesday, and is the number of students that watched TV on every day.

By the same logic, we have:

This diagram has the following subsets:

The sums of all of this values is the number of student that were there in the class. This means that we want to find the value of T:

We start finding the values from the intersection of three sets.

Solution:

12 students watched TV on all three days:

14 students watched TV on both Monday and Tuesday

Of those who watched TV on only one of these days, 13 choose Monday, 9 chose Tuesday, and 10 chose Wednesday.

29 students watched television on Monday:

24 on Tuesday

Now we have every value needed to find T:

There were 49 students in the class

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540