A pile of Class-V Mathematics books has thickness of `14(2)/(5)cm"` .If each book is `1(1)/(5)cm"` thick,find how many books make up the pile.

A pile of notebooks is 14 1/4 cm thick. If each notebook is 1 3/16 cm thick, then find the 4 16 number of notebooks in the pile

Eleven books are stacked on top of each other. If each book is 2.35 cm thick, find the height of the stack.

The ratio of story books and text books of preetam is 2:5 . If preetam has 4 story books, then find how many text books he has.

In the school cupboard, 36 math books were stacked one on top of the other. If each maths book is 2(1)/(3) cm thick, what is the height of the stack of books?

The sum of the costs of one book each of Mathematics, Physics and Chemistry is Rs 210. Total cost of a mathematics book, 2 physics books, and a chemistry book is Rs. 240/- Also the total cost of a Mathematics book, 3 physics book and 2 chemistry books is Rs. 300/-. Find the cost of each book using matrices.

Each x students of class V is given y books. But each x students of class VI is given (y+3) books. Again each (x+11) students of class VII is given (y+10) books. Calculate to find, how many books were given to the students of class V, VI and VII. Also find the total number of books given out in their classes.

The thickness of 10 books was found to be 8 cm and 5 mm. What is the thickness of one book ?

There are 5 books on Mathematics, 4 books on Physics and 3 books on Chemistry. In how many ways can these books be arranged in a shelf if books of same subject should.be together.

A library has 5 copies of one book, 4 copies of each of 2 books, 6 copies of ech of 3 books nad single copies of 8 books. In how many ways cn all books be arranged so that copies of the same book are always together?