1.

The owner of an academic book shop keeps a record of the number of books he sells in each subject. He noted that in a particular month, he sold 50 math books, 120 science books, 70 social studies books and 60 language books. What is the probability that the next book sold is a science book?

Answer»

The owner of an academic book shop keeps a record of the number of books he sells in each subject. He noted that in a particular month, he sold 50 math books, 120 science books, 70 social studies books and 60 language books. What is the probability that the next book sold is a science book?



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