At the end of a banquet 10 people shake hands with each other . How many handshakes will be in total?
ক) 100
খ) 20
গ) 45
ঘ) 90
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ক) Thursday
খ) Wednesday
গ) Tuesday
ঘ) Monday
ক) a & d
খ) c & d
গ) b & c
ঘ) a & c
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