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a textbook store sold 324 a combined total of chemistry and biology textbooks in a week. the number of chemistry textbooks sold was three times the number of biology textbooks sold. how many textbooks of each type were sold?

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tutorconsortium109

Total number of Chemistry textbooks sold is 81 and total number of Biology textbooks sold is 243

How is the number of each textbooks sold, calculated?

Let there are x biology textbooks sold.

No of chemistry textbooks sold = 3 the number of biology textbooks sold

ATQ,

A textbook store sold a combined total of 324 biology and chemistry textbooks in a week.

x + 3x = 324

4x = 324

x = 81

It means there are 81 biology textbooks sold and 3x = 3(81) = 243 chemistry textbooks sold.

To learn more about ratio and proportions, refer

https://brainly.com/question/2914376

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