SOLUTION: David's novel has 12 chapters. Some of the chapters have 25 pages and some of the chapters have 37 pages. How many of each size chapter does the novel have if it is 360 pages long?

SOLUTION: David's novel has 12 chapters. Some of the chapters have 25 pages and some of the chapters have 37 pages. How many of each size chapter does the novel have if it is 360 pages long?

Algebra.Com

Question 826683: David's novel has 12 chapters. Some of the chapters have 25 pages and some of the chapters have 37 pages. How many of each size chapter does the novel have if it is 360 pages long?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
a+b=12,
25a+37b=360
or
The chapters with 37 pages must come in groups of 5 to end in 5
37*5=185
360-185=175
175/25=7
5 chapters of 37 pages and 7 chapters of 25 pages

RELATED QUESTIONS
two books contain 1395 and 2232 page respectively. the books are divided in chapter. each (answered by ikleyn)

An author completed 10 chapters of his book in the first month. In the second month, he... (answered by nyc_function)

Jason reads an equal number of pages of a novel each day . After 12 days he has 5/8 of... (answered by richwmiller)

I have 2 whole chapters of word problems! Stella's Catering has nut mixtures that are... (answered by josgarithmetic)

i bought a big books the book have 100 pages for $8 while the smaal book have 25 pages... (answered by checkley77)

A newspaper has 48 pages. The page has stories advertisement or both. 50% of the pages... (answered by JoelSchwartz)

If Tom is reading a book that has 193 pages and he has read 3 pages more than one forth... (answered by nerdybill)

Ingrid types 3 pages in the same amount of time that Tanya types 4.5 pages. If Ingrid and (answered by richwmiller)

I do not have the book but I print out the chapters because I do on-line schooling. The... (answered by stanbon)