Question

Asha has joined LinkedIn and has 10 friends and each of these friends has 15 friends. Later, it is found that at least two of her friends know each other and on marriage, she wants to invite all her friends and all the friends of her friends. Find the difference between minimum number of invitations sent by Asha and the maximum number of invitations sent by Asha.

A 125
B 133
C 128
D 135
E 130
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