Others Maths Puzzle

How many different arrangements can be made by using all the letters of the word "INDEPENDENCE" if
(i)D's come together?
(ii)D's do not come together?

Read Solution (Total 1)

Others Other Question

A chicken farmer has figured out that a hen and a half can lay an egg and a half in a day and a half. How many hens does the farmer need to produce one dozen eggs in six days? In how many ways can a party of 4 or more be selected from 10 persons?
Options
1)642
2)528
3)848
4)576