Question

A boy has read 3/11 part of book if 160 pages remaing in the book then find out thr total number of pages

Answer 1

Let the number of pages in the book be x

then,

x- (3/11*x)=160

(11x-3x)÷11=160

8x÷11=160

8x=1760

x=1760÷8

x=220

Therefore, the book has 220 pages.

Answer 2

This question tests the application of fractions.

The part that the boy has read = 3/11

The part remaining will be :

1 - 3/11

= 11/11 - 3/11 = 8/11

this represents 160 pages

so :

8/11 = 160

11/11 = ?

By cross multiplication we have :

11/11 × 11/3  × 160 = 586.67

since we cant have a fraction of a page ,the book is approximately :

587 pages