A typist has to type a manuscript of 40 pages. She has typed 30 pages of the manuscript. What is the ratio of the number of pages typed to the number of pages left?

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:

How many even numbered pages are there in a book of 1089 pages ?

Directions: The following bar graph shows the number of pages in five different books (viz. A, B, C, D and E). Study the graph carefully and answer the following questions. What is the ratio of total number of pages in book B and E together to the total number of pages in book C and D together?

How many odd numbered pages are there in a book of 1089 pages?

An English book contains 130 pages. A page is selected at random. What is the probability that the number on the page is divisible by 25?

A mathematics book contains 250 pages. A page is selected at random. What is the probability that the number on the page selected is a perfect square?