A mathematics book has 320 pages, 40% of which are on algebra, 25% on geometry and the remaining on arithmetic. How many pages of arithmetic are there ?

There are 160 pages in a book 15% of the pages have pictures on them. How many pages do not have pictures on them?

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:

An army of 1,45,600 loses 25% of its soldiers in an epidemic and 15% of the remaining in battle. How many soldiers are left?

In a book with page numbers from 1 to 100, sme pages are torn off. The sum of the numbers on the remaining pages is 4949. How many pages are torn off ?

After reading 7/9 of a book, 40 pages are left. How many pages are there in the book?

Shobha's Mathematics test had 75 problems i.e., 10 arithmetic, 30 algebra and 35 geometry problems. Although she answered 70% of the arithmetic, 40% of the algebra and 60% of the geometry problems correctly, she did not pass the test because in algebra she got less than 60% of the problems right. How many more questions she would have needed to answer correctly to score a 60% passing grade?

Shobha’s Mathematics Test had 75 problems i.e, 10 arithmetic, 30 algebra and 35 geometry problems. Although she answered 70% of the arithmetic 40% of the algebra and 60% of the geometry problems correctly she did not pass the test because she got less than 60% of the problems right. How many more questions she would have needed to answer correctly to earn a 60% passing grade?