I need some help with Word Problems

Mathematics
Tutor: None Selected Time limit: 1 Day

A textbook store sold a combined total of 392 biology and math textbooks in a week. The number of biology textbooks sold was three times the number of math textbooks sold. How many textbooks of each type were sold?

Jun 22nd, 2015

Thank you for the opportunity to help you with your question!

Hi,

find the solution below

let Maths books be X

biology will be 3x

3x+x=392

4x=392

x=98

therefore maths books are 98

biology books will be 98*3=294

Biology books=294

maths books=98


Please let me know if you need any clarification. I'm always happy to answer your questions.
Jun 22nd, 2015

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