The question is ambiguous:
Another way to look at this one:
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If you multiply anything by 2 it always comes out even. So if people make 35 handshakes, we multiply it by 2 and we get 70 people. This will work with any different number of handshakes, odd or even.
by hands
The angle in which the hands of the clock make at five o'clock is 150o.
66. Each of the 12 members shook hands with the 11 other people. That would make 12*11 hand shakes. BUT, the A shaking B's hand is the same event as B shaking A's hand so all these handshakes are double-counted. The actual number is half that ie 33. If you are more familiar with combinatorial mathematics, the answer is the number of combinations of two obejects from 12, which is 12C2 = 12*11/(2*1)
they grab hundreds of coloured balls and them thousands of coloured balls and put them in a container and shake the up. that is how u make hundreds and thousands.