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Question
LEADERS is a WhatsApp group with 256 members. Every one of its member is an admin for their own WhatsApp group with 256 distinct members. When a message is posted in LEADERS and everybody forwards the same to their own group, then how many members in total will receive that message?
Solution
Members of the groups LEADERS = 256
Members is individual groups of the members of LEADERS = 256
Total members who receive the message
= 256 × 256
= 28 × 28
= 28+8
= 216
= 65536
Totally 65536 members receive the message.
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