unread pages -> 1 - 7/9 = 2/92/9 of the book -> 40 pagestotal number of pages -> 40 ÷ 2 × 9 = 180 pages
Answer:
180
Step-by-step explanation:
Let the total pages be x
Total pages read =7/9×x
Pages left =
x -7x/9= 40
=9x -7x/ 9=40
=2x/9 =40
x = 40× 9 /2
=20 × 9
=180
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Answers & Comments
unread pages -> 1 - 7/9 = 2/9
2/9 of the book -> 40 pages
total number of pages -> 40 ÷ 2 × 9 = 180 pages
Verified answer
Answer:
180
Step-by-step explanation:
Let the total pages be x
Total pages read =7/9×x
Pages left =
x -7x/9= 40
=9x -7x/ 9=40
=2x/9 =40
x = 40× 9 /2
=20 × 9
=180