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29 January, 22:16

In a meeting of 3 representatives from each of 6 different companies, each person shook handswith every person not from his or her own company. If the representatives did not shake handswith people from their own company, how many handshakes took place? A. 45B. 135C. 144D. 270E. 288

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  1. 30 January, 00:25
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    B. 135

    Step-by-step explanation:

    Lets count the total number of handshakes = 18Combination2 = 153 ...

    Out of these within company handshakes = 3C2=3

    and no of companies=6

    so total handshakes within company = 6*3=18

    Handshakes with given restrictions = 153-18 = 135
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