Question

Joanna is reading a storybook. The ratio of the number of pages she read to the pages that remain to be read is 7 : 3. If the book contains 500 pages in all, how many pages did Joanna read and how many pages remain to be read?

Answer 1

Step-by-step explanation:

let the ratios be 7x:3x

sum of ratios=7x+3x=10x

sum of ratios=no of pages

10x=500

x=500/10

x=50

7x=7×50=350

3x=3×50=150

so she has read 350pages and she has to read 150pages