Question

In a Company, there are 55 members of staff. Every member posts

a greeting card to all the members. How many greeting cards were
posted by them?

Answer 1

To find out how many greeting cards were posted by the 55 members of staff in the company, we can use the concept of permutations. Each member should send a card to every other member, and we can calculate the number of greeting cards using the formula: 55 * 54 = 2,970.

Step-by-step explanation:

To find out how many greeting cards were posted by the 55 members of staff in the company, we can use the concept of permutations. Each member should send a card to every other member, except themselves. So, for each member, there are 54 recipients. We can calculate the number of greeting cards using the formula: 55 * 54 = 2,970.