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Показувати елементи керування програвачем
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Another way to do it is the formula for sum of 1 to n. n(n+1)/2 so 5*6/2=15
If 2 ppl shaking hands no matter the order counts as 1 handshake, then you can find the answer by using 6C2. or 6!/(6-2)!2! = 15. 15 hanshakes in total
Correct! Well done:)
Another way to do it is the formula for sum of 1 to n. n(n+1)/2 so 5*6/2=15
If 2 ppl shaking hands no matter the order counts as 1 handshake, then you can find the answer by using 6C2. or 6!/(6-2)!2! = 15. 15 hanshakes in total
Correct! Well done:)