How many ways can a person toss a coin 13 times so that the number of tails is between 7 and 11 inclusive?
1 answer:
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Given that original lenght of the board before cut meter
Lenght of the board that is left after cutting from the original piece by Hernan meter
Now we have to find the lenght of the piece which is cut.
To find that we just need to subtract smaller piece from larger piece
Required Length meter
Required Length meter
Required Lengthmeter
reduce the fraction
Required Length meter
Hence final answer is meter.