There are 300 students in a class 10th. Among them, 80 students are learning both History & Geography. A total of 180 students are learning History. If every student is learning at least one of these two subjects, how many students are learning Geography in total ?
Answers
Every student is learning at least one of these two subjects. Hence there is no one who fall in the category ‘neither’.
It is mentioned in the problem that a total of 180 are learning History.
Now, 180 are learning History and 80 are learning both the subjects. This means that 180 – 80 = 100 are learning only History.
So, out of a total of 300 students, 100 are learning only history which clearly means that rest 200 are learning Geography (whether only geography or with history)
Therefore, total number of students learning Geography = 200.
Answer:
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Step-by-step explanation:
=> Every student is learning at least one of these two subjects.
=> Hence there is no one who fall in the category ‘neither’.
=> It is mentioned in the problem that a total of 180 are learning History.
=> Now, 180 are learning History and 80 are learning both the subjects.
=> This means that 180 – 80 = 100 are learning only History.
=> So, out of a total of 300 students, 100 are learning only history which clearly means that rest 200 are learning Geography (whether only geography or with history)
=> Therefore, total number of students learning Geography = 200.
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