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Question
The following pictograph shows different subject books which are kept in a school library.
| Subject | Number of books |
| Hindi |       |
| English |       |
| Math |      |
| Science |      |
| History |     |
Taking symbol of one book = 50 books, find:
How many History books are there in the library?
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Solution
There are 50 x 4 = 200 History books in the library.
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