#### Only one of the four options is correct. Write the correct one.Mathematics textbook for Class VI has 320 pages. The chapter ‘symmetry’ runs from page 261 to page 272. The ratio of the number of pages of this chapter to the total number of pages of the book is(A) 11 : 320 (B) 3 : 40 (C) 3 : 80 (D) 272 : 320

Given: Total number of pages in mathematics book =320 pages

The number of pages in the chapter 'symmetry' =272-261+1=12 pages

The ratio of the number of pages of this chapter to the total number of pages of the book

$\Rightarrow \frac{\text { Number of pages in the chapter 'symmetry' }}{\text { Total number of pages in the book }} =\frac{12}{320}=\frac{3}{80}\Rightarrow 3: 80$

Option C is correct.