Question

Niti reads 3/8 of a book and finds that 90 pages are still left.Find how many pages are there in the book​

Answer 1

Answer:

144

Step-by-step explanation:

if she read 3/8of a book and found that 90 pages are left,

3/8x+90=8/8x

90=5/8x

x=(90×8)÷5

=144

Answer 2

Let the page numbers of a book=x

Neeti reads 3/8 of book

=x ×3/8=3x/8

Rest pages=90

As per question,

=>x - 3x/8=90

=>8x - 3x/8=90

=>5x=720

=>x=720/5=144

Hence the total pages 144