In a colony, there are 55 members. Every member posts a greeting card – McqOptions

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1.	In a colony, there are 55 members. Every member posts a greeting card to all the members. How many greeting cards were posted by them?
A.	990
B.	890
C.	2970
D.	1980
Answer» D. 1980

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In a colony, there are 55 members. Every member posts a greeting card to all the members. How many greeting cards were posted by them?