Two big packets of books contain 84 and 105 books respectively.These books are to be packed into small packets which will contain same number of books.How many maximum number of books can be packed in each small packet?

How many selections of 4 books can be made from 8 different-books ?

Two tankers contain 434l and 465 litres of diesel respectively. Find the maximum capacity of a container that can measure the diesel of two tankers exact number of times.

In how many ways can 5 different books be tied up in three bundles?

If A and B be two sets containing 6 and 3 elements respectively, what can be the minimum number of elements in AuuB ? Also, find the maximum number of elements in AuuB .

Ila read 25 pages of a book containing 100 pages.Lalita read 2/5 of the same book.Who read less?

A medical company has factories at two places. A and B. From these places, supply at P, Q and R. The monthly requirements of the agencies are respectively 40, 40 and 50 packets of the medicines, while the production capacity of the factories A and B, are 60 and 70 packets respectively. The transportation cost per packet from the factories to the agencies are given below : How many packets from each factory be transported to each agency so that the cost of transportation is minimum? Also find the minimum cost.

There are 6 books on mathematics, 4 books on physics annd 5 books on chemistry in a book shop. The number of ways can a student purchase either a book on mathematics or a book on chemistry, is