Question

After reading 7/9 of a book ,30 pages are left.How many pages are there in the book?

Answer 1

7/9*30
23 pages approx

Answer 2

let the total number of pages be x

then, (7/9)*x+30=x

x-7x/9=30

2x/9=30

x=30*(9/2)

x=135

so total number of pages are 135